Hi Jbpeach,
This may be due to needing to take ownership of the folder. The owner controls how permissions are set on the object, and to whom permissions are granted. I’ve listed steps below to do so:
Microsoft Answers Support Engineer
Visit our Microsoft Answers Feedback Forum and let us know what you think.
This may be due to needing to take ownership of the folder. The owner controls how permissions are set on the object, and to whom permissions are granted. I’ve listed steps below to do so:
First you will need to show hidden files and folders to be able to get to the AppData folder. To do this, follow these steps:
1. Click Start
2. Click Control Panel
3. Click Appearance and Personalization
4. Under the category “Folder Options” click Show hidden files and folders
5. In the window that opens under the folder entitled 'Hidden files and folders' select Show hidden files and folders.
Now proceed to the steps listed below to take ownership of a folder, in your case the AppData folder.
1. Right-click the file or folder, click Properties, and then click the Security tab.
2. Click Advanced, and then click the Owner tab.
3. Click Edit, and then do one of the following:
· To change the owner to a user or group that is not listed, click Other users and groups and, in Enter the object name to select (examples), type the name of the user or group, and then click OK.
· To change the owner to a user or group that is listed, in the Change owner to box, click the new owner.
4. If you want to take ownership of the contents of the folder, select the Replace owner on subcontainers and objects check box.
5. Click OK, and then click Yes when you receive the following message:
You do not have permission to read the contents of directory folder name. Do you want to replace the directory permissions with permissions granting you Full Control?
All permissions will be replaced if you click Yes.
Note folder name is the name of the folder that you want to take ownership of.
Note folder name is the name of the folder that you want to take ownership of.
6. Click OK, and then reapply the permissions and security settings that you want for the folder and its contents.
Additional considerations
· An administrator can take ownership of any file on the computer.
· Assigning ownership of a file or a folder might require you to elevate your permissions using User Access Control.
When you are done with these steps go back to where I showed you how to show hidden files and folders and put it back to Do not show hidden files and folders. This will better protect you from accidentally modifying a folder that may cause you future problems.
We look forward to hearing back from you. If this did not resolve the issue, don’t worry, we will be happy to further assist you.
Brian Microsoft Answers Support Engineer
Visit our Microsoft Answers Feedback Forum and let us know what you think.
I'm trying to detect if a file exists at runtime, if not, create it. However I'm getting this error when I try to write to it:
The process cannot access the file 'myfile.ext' because it is being used by another process.
Any ideas on how to fix it?
bluish14.7k1919 gold badges9494 silver badges151151 bronze badges
BrettBrett86333 gold badges1212 silver badges2424 bronze badges
10 Answers
The
File.Create
method creates the file and opens a FileStream
on the file. So your file is already open. You don't really need the file.Create method at all:The boolean in the
bluishStreamWriter
constructor will cause the contents to be appended if the file exists.14.7k1919 gold badges9494 silver badges151151 bronze badges
Chris DunawayChris Dunaway8,94622 gold badges2929 silver badges4444 bronze badges
I want to update this answer to say that this is not really the most efficient way to write all text. You should only use this code if you need something quick and dirty.
I was a young programmer when I answered this question, and back then I thought I was some kind of genius for coming up with this answer.
Carsen Daniel YatesCarsen Daniel Yates1,53211 gold badge99 silver badges1515 bronze badges
When creating a text file you can use the following code:
Using the code from your comment. The file(stream) you created must be closed. File.Create return the filestream to the just created file.:
Ralf de KleineRalf de Kleine9,08122 gold badges3131 silver badges7575 bronze badges
Paresh Mayani98.6k6666 gold badges225225 silver badges282282 bronze badges
user3430377user3430377
File.Create returns a FileStream. You need to close that when you have written to the file:
You can use using for automatically closing the file.
kimtiedekimtiede
I updated your question with the code snippet. After proper indenting, it is immediately clear what the problem is: you use
File.Create()
but don't close the FileStream
that it returns.Doing it that way is unnecessary,
StreamWriter
already allows appending to an existing file and creating a new file if it doesn't yet exist. Like this:Which uses this
Hossein Narimani RadStreamWriter
constructor.21.9k1212 gold badges6868 silver badges9898 bronze badges
Hans PassantHans Passant806k112112 gold badges13691369 silver badges21532153 bronze badges
This question has already been answered, but here is a real world solution thatchecks if the directory exists and adds a number to the end if the text fileexists. I use this for creating daily log files on a Windows service I wrote. Ihope this helps someone.
HalcyonHalcyon7,8321515 gold badges5757 silver badges8282 bronze badges
I know this is an old question, but I just want to throw this out there that you can still use
File.Create('filename')'
, just add .Dispose()
to it.File.Create('filename').Dispose();
This way it creates and closes the file for the next process to use it.
IamBatmanIamBatman
I think I know the reason for this exception. You might be running this code snippet in multiple threads.
TylerH16.3k1010 gold badges5656 silver badges7171 bronze badges
Kusala SubasingheKusala Subasinghe
Try this: It works in any case, if the file doesn't exists, it will create it and then write to it. And if already exists, no problem it will open and write to it :
PureSilencePureSilence
Not the answer you're looking for? Browse other questions tagged c#file-io or ask your own question.
-->Definition
Overloads
Create(String)Create(String)Create(String)Create(String) | Creates or overwrites a file in the specified path. |
Create(String, Int32)Create(String, Int32)Create(String, Int32)Create(String, Int32) | Creates or overwrites the specified file. |
Create(String, Int32, FileOptions)Create(String, Int32, FileOptions)Create(String, Int32, FileOptions)Create(String, Int32, FileOptions) | Creates or overwrites the specified file, specifying a buffer size and a FileOptions value that describes how to create or overwrite the file. |
Create(String, Int32, FileOptions, FileSecurity)Create(String, Int32, FileOptions, FileSecurity)Create(String, Int32, FileOptions, FileSecurity) | Creates or overwrites the specified file with the specified buffer size, file options, and file security. |
Create(String)Create(String)Create(String)Create(String)
Creates or overwrites a file in the specified path.
Parameters
- path
- StringStringStringString
The path and name of the file to create.
Returns
A FileStream that provides read/write access to the file specified in
path
.Exceptions
UnauthorizedAccessExceptionUnauthorizedAccessExceptionUnauthorizedAccessExceptionUnauthorizedAccessException
The caller does not have the required permission.
-or-
path
specified a file that is read-only. -or-
path
specified a file that is hidden.ArgumentExceptionArgumentExceptionArgumentExceptionArgumentException
path
is a zero-length string, contains only white space, or contains one or more invalid characters as defined by InvalidPathChars.ArgumentNullExceptionArgumentNullExceptionArgumentNullExceptionArgumentNullException
path
is null
.PathTooLongExceptionPathTooLongExceptionPathTooLongExceptionPathTooLongException
The specified path, file name, or both exceed the system-defined maximum length.
DirectoryNotFoundExceptionDirectoryNotFoundExceptionDirectoryNotFoundExceptionDirectoryNotFoundException
The specified path is invalid (for example, it is on an unmapped drive).
An I/O error occurred while creating the file.
NotSupportedExceptionNotSupportedExceptionNotSupportedExceptionNotSupportedException
path
Wow starter edition not upgrading. is in an invalid format.Examples
The following example creates a file in the specified path, writes some information to the file, and reads from the file.
Remarks
The FileStream object created by this method has a default FileShare value of None; no other process or code can access the created file until the original file handle is closed.
This method is equivalent to the Create(String, Int32) method overload using the default buffer size of 4,096 bytes.
The
path
parameter is permitted to specify relative or absolute path information. Relative path information is interpreted as relative to the current working directory. To obtain the current working directory, see GetCurrentDirectory. If the specified file does not exist, it is created; if it does exist and it is not read-only, the contents are overwritten.
By default, full read/write access to new files is granted to all users. The file is opened with read/write access and must be closed before it can be opened by another application.
For a list of common I/O tasks, see Common I/O Tasks.
Security
FileIOPermission
for permission to read and write to the file described by the
for permission to read and write to the file described by the
path
parameter. Security action: Demand . Associated enumerations: Read, Write- See also
Create(String, Int32)Create(String, Int32)Create(String, Int32)Create(String, Int32)
Creates or overwrites the specified file.
Purity User File Create Error Codes
Parameters
- bufferSize
- Int32Int32Int32Int32
The number of bytes buffered for reads and writes to the file.
Returns
A FileStream with the specified buffer size that provides read/write access to the file specified in
path
.Exceptions
UnauthorizedAccessExceptionUnauthorizedAccessExceptionUnauthorizedAccessExceptionUnauthorizedAccessException
The caller does not have the required permission.
-or-
path
specified a file that is read-only. -or-
path
specified a file that is hidden.ArgumentExceptionArgumentExceptionArgumentExceptionArgumentException
path
is a zero-length string, contains only white space, or contains one or more invalid characters as defined by InvalidPathChars.ArgumentNullExceptionArgumentNullExceptionArgumentNullExceptionArgumentNullException
path
is null
.PathTooLongExceptionPathTooLongExceptionPathTooLongExceptionPathTooLongException
The specified path, file name, or both exceed the system-defined maximum length.
DirectoryNotFoundExceptionDirectoryNotFoundExceptionDirectoryNotFoundExceptionDirectoryNotFoundException
The specified path is invalid (for example, it is on an unmapped drive).
An I/O error occurred while creating the file.
NotSupportedExceptionNotSupportedExceptionNotSupportedExceptionNotSupportedException
path
is in an invalid format.Examples
The following example creates a file with the specified buffer size.
For more quality articles about all things PC gaming, you can subscribe now in the and the.' It’s a total conversion for a four-year-old game,” read PC Gamer US’s rundown of, when the Oblivion mod clinched the coveted Mod of the Year award in 2010. “But Nehrim is so impressive that it was a contender not just for best mod, but for best RPG.” Such are the lofty standards that German hobbyist group SureAI works to, its total conversion mods feel less like add-ons or additional content indolently tacked onto games post-release, and more like entirely new releases.Nehrim received plaudits across the board, including four separate Mod of the Year accolades from ModDB. It was praised for its detailed plot, its mature political and sociopolitical themes, and its extensive landscapes., SureAI’s upcoming Skyrim total conversion, aims to be bigger still. Total locations in skyrim. This article was originally published in.
Remarks
The FileStream object created by this method has a default FileShare value of None; no other process or code can access the created file until the original file handle is closed.
The
path
parameter is permitted to specify relative or absolute path information. Relative path information is interpreted as relative to the current working directory. To obtain the current working directory, see GetCurrentDirectory. This method is equivalent to the FileStream(String, FileMode, FileAccess, FileShare, Int32) constructor overload. If the specified file does not exist, it is created; if it does exist and it is not read-only, the contents are overwritten.
By default, full read/write access to new files is granted to all users. The file is opened with read/write access and must be closed before it can be opened by another application.
For a list of common I/O tasks, see Common I/O Tasks.
Security
FileIOPermission
for permission to read and write to the file described by the
for permission to read and write to the file described by the
path
parameter. Security action: Demand. Associated enumerations: Read, Write- See also
Create(String, Int32, FileOptions)Create(String, Int32, FileOptions)Create(String, Int32, FileOptions)Create(String, Int32, FileOptions)
Creates or overwrites the specified file, specifying a buffer size and a FileOptions value that describes how to create or overwrite the file.
Parameters
- bufferSize
- Int32Int32Int32Int32
The number of bytes buffered for reads and writes to the file.
- options
- FileOptionsFileOptionsFileOptionsFileOptions
One of the FileOptions values that describes how to create or overwrite the file.
Returns
A new file with the specified buffer size.
Exceptions
UnauthorizedAccessExceptionUnauthorizedAccessExceptionUnauthorizedAccessExceptionUnauthorizedAccessException
The caller does not have the required permission.
-or-
path
specified a file that is read-only. -or-
path
specified a file that is hidden.ArgumentExceptionArgumentExceptionArgumentExceptionArgumentException
path
is a zero-length string, contains only white space, or contains one or more invalid characters as defined by InvalidPathChars.ArgumentNullExceptionArgumentNullExceptionArgumentNullExceptionArgumentNullException
path
is null
.PathTooLongExceptionPathTooLongExceptionPathTooLongExceptionPathTooLongException
The specified path, file name, or both exceed the system-defined maximum length.
DirectoryNotFoundExceptionDirectoryNotFoundExceptionDirectoryNotFoundExceptionDirectoryNotFoundException
The specified path is invalid (for example, it is on an unmapped drive.
An I/O error occurred while creating the file.
NotSupportedExceptionNotSupportedExceptionNotSupportedExceptionNotSupportedException
path
is in an invalid format.Remarks
The
path
parameter is permitted to specify relative or absolute path information. Relative path information is interpreted as relative to the current working directory. To obtain the current working directory, see GetCurrentDirectory. This method is equivalent to the FileStream(String, FileMode, FileAccess, FileShare, Int32) constructor overload. If the specified file does not exist, it is created; if it does exist and it is not read-only, the contents are overwritten.
By default, full read/write access to new files is granted to all users. The file is opened with read/write access and must be closed before it can be opened by another application.
For a list of common I/O tasks, see Common I/O Tasks.
Security
FileIOPermission
for permission to read and write to the file described by the
for permission to read and write to the file described by the
path
parameter. Security action: Demand. Associated enumerations: Read, WriteCreate(String, Int32, FileOptions, FileSecurity)Create(String, Int32, FileOptions, FileSecurity)Create(String, Int32, FileOptions, FileSecurity)
Creates or overwrites the specified file with the specified buffer size, file options, and file security.
Parameters
- bufferSize
- Int32Int32Int32Int32
The number of bytes buffered for reads and writes to the file.
- options
- FileOptionsFileOptionsFileOptionsFileOptions
One of the FileOptions values that describes how to create or overwrite the file.
- fileSecurity
- FileSecurityFileSecurityFileSecurityFileSecurity
One of the FileSecurity values that determines the access control and audit security for the file.
Returns
A new file with the specified buffer size, file options, and file security.
Exceptions
UnauthorizedAccessExceptionUnauthorizedAccessExceptionUnauthorizedAccessExceptionUnauthorizedAccessException
The caller does not have the required permission.
-or-
path
specified a file that is read-only. -or-
path
specified a file that is hidden.ArgumentExceptionArgumentExceptionArgumentExceptionArgumentException
path
is a zero-length string, contains only white space, or contains one or more invalid characters as defined by InvalidPathChars.ArgumentNullExceptionArgumentNullExceptionArgumentNullExceptionArgumentNullException
path
is null
.PathTooLongExceptionPathTooLongExceptionPathTooLongExceptionPathTooLongException
The specified path, file name, or both exceed the system-defined maximum length.
DirectoryNotFoundExceptionDirectoryNotFoundExceptionDirectoryNotFoundExceptionDirectoryNotFoundException
The specified path is invalid (for example, it is on an unmapped drive).
An I/O error occurred while creating the file.
NotSupportedExceptionNotSupportedExceptionNotSupportedExceptionNotSupportedException
path
is in an invalid format.Remarks
The
path
parameter is permitted to specify relative or absolute path information. Relative path information is interpreted as relative to the current working directory. To obtain the current working directory, see GetCurrentDirectory. This method is equivalent to the FileStream(String, FileMode, FileAccess, FileShare, Int32) constructor overload. If the specified file does not exist, it is created; if it does exist and it is not read-only, the contents are overwritten.
By default, full read/write access to new files is granted to all users. The file is opened with read/write access and must be closed before it can be opened by another application.
For a list of common I/O tasks, see Common I/O Tasks.
Security
FileIOPermission
for permission to read and write to the file described by the
for permission to read and write to the file described by the
path
parameter. Security action: Demand. Associated enumerations: Read, WriteApplies to
Like many others, you too may be puzzled and frustrated when you are unable to login to a new user account due to “User Profile Cannot be Loaded” Error in Windows 10. Continue reading to find out some practical ways to fix this annoying error in Windows 10.
User Profile Cannot Be Loaded Error in Windows 10
This error is mostly bothering those users who have upgraded their computers to Windows 10 from an earlier version of Windows and are now trying to create a New Local User account by using the option to “Add a user without a Microsoft Account”.
In general, users are able to create a new Local User Account without facing any problems. However, every time they create a new User Account and try to login by typing in the password, they see this frustrating error message:
“The User Profile Service failed the logon” along with “The user profile cannot be loaded” – See image below.
Reasons for User Profile Cannot Be Loaded Error
For those who are interested in knowing, the following two reasons are being commonly provided for the occurrence of this strange error on a Windows 10 computer.
1. The Default profile on your computer might be corrupted while upgrading to Windows 10 from an older version of Windows operating system. This error is occurring because Windows 10 is creating a new user profile by making use of files from the default profile (which is corrupted).
2. According to Microsoft a user profile can also become corrupted if your antivirus software is scanning your PC while you try to login to a user profile.
While above two reasons are commonly being quoted on online help communities and forums, we believe this error is also occurring when the user profile is not exactly corrupted. This conclusion is based on our testing which makes it surprisingly easy to create a new user profile on the same computer which was generating error messages.
We do not know for sure whether this is happening only on our machines. Hence, we are offering this solution as a third option (below) for resolving this problem.
Fix User Profile Cannot be Loaded Error in Windows 10
Going by the reasons provided for “User Profile Cannot be Loaded” Error Message, you can use any of these methods to fix this problem.
1. Fix Corrupted User profile by getting into registry files.
2. Replace the Corrupted Default User Profile on your computer with a good one and then try to create new user account.
3. Disconnect from internet and create a New Local User Account.
Tip: Try the third option first, instead of starting with the first two options.
1. FIX Corrupt User Profile by Correcting Registry Values
Since this method involves getting into registry files, it is mostly recommended for advanced users who are used to working with registry files.
The idea behind this method is get to the registry files related to the corrupted user profile and reset the incorrect registry values in “RefCount” and “State” REG_DWORD Files.
This method works well in cases where the reason for the error message is due to incorrect registry values. You can get the exact steps for this method by reading: How to Fix A Corrupt User Profile in Windows 10
Replace Corrupt Default User Profile with a Good One
Since Windows is creating a new user profile using corrupted User Profile files, it makes sense to replace the corrupt user profile with a good one that is not corrupted.
You can do this either by copying the contents of a Default user profile from another machine that is working or by creating a new Default User Profile by following these steps.
Note: In case you are copying a Default User Profile from another Machine, you need to make sure that the computer that you are copying the content from has the same version of Windows operating system as yours.
1. Login to your Admin Account or a user account with Admin privileges.
2. Next, go to Users Folder on C: drive – (See image below).
3. Before proceeding with next steps, make hidden files and file name extensions visible on your computer by clicking on the View tab in file explorer top menu and checking on File name extensions and Hidden Items (See image below).
4. Locate the Default Folder and right click on it (See image below).
5. Now rename the Default folder to Default.old.
Note: Do not delete the Default.old folder; this will be your backup in case something goes wrong.
6. Next, create a new folder named Default (in the Users Folder).
7. Inside this new default folder Create Sub Folders with the same names as those found in Default.old. For example, you will be creating folders with names Desktop, Documents, Downloads, Pictures and others to end up with the following folder paths.
C:UsersDefaultDesktop
C:UsersDefaultDocuments
C:UsersDefaultDownloads
C:UsersDefaultPictures
C:UsersDefaultDocuments
C:UsersDefaultDownloads
C:UsersDefaultPictures
Basically in this step you are duplicating the folder structure as it was existing in your original Default folder.
8. Next, copy NTUSER.DAT file from your admin account or a user account that is working and paste it into the Default folder.
After completing these steps, you should be able to create new user profiles and login to them without generating any error messages.
3. Create a New Local User Account
While the above two methods work in case the Default User Profile is corrupted, we were surprised to find that “User Profile Cannot be Loaded” Error message can also be generated when the Default User Profile is not corrupted in any way.
While we do not know the reasons for this, the solution to this problem is as simple as disconnecting your computer from the internet and creating a new Local User Account.
You may be surprised by how well this works, just make sure that your computer is not connected to the internet and Create a new Local User Account by following the steps provided in this article: How to Create A Local User Account in Windows 10.