The exception that is thrown when the operating system denies access because of an I/O error or a specific type of security error.
Questions tagged [unauthorizedaccessexcepti]
160 questions
213
votes
32 answers
Why is access to the path denied?
I am having a problem where I am trying to delete my file but I get an exception.
if (result == "Success")
{
if (FileUpload.HasFile)
{
try
{
File.Delete(Request.PhysicalApplicationPath +…

nick gowdy
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44
votes
6 answers
Directory.EnumerateFiles => UnauthorizedAccessException
There is a nice new method in .NET 4.0 for getting files in a directory in a streaming way via enumeration.
The problem here is that if one wishes to enumerate all files one may not know in advance which files or folders are access protected and can…

Bent Rasmussen
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39
votes
5 answers
HTTP Error 401.2 - Unauthorized You are not authorized to view this page due to invalid authentication headers
i want to allow access to Anonymous.aspx page to all user,
i have set Basic Authentication to Enabled, and Connect as to specific user.
my problem is when trying to access http://MyIPAddress/MyAlias/Anonymous.aspx, authentication popup…

BrainCoder
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24
votes
1 answer
UnauthorizedAccessException vs SecurityException
The MSDN constructor for a FileStream says that it may throw either an UnauthorizedAccessException or a SecurityException. Here's what MSDN says about these exceptions.
UnauthorizedAccessException:
The exception that is thrown when the operating…

Eric Anastas
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19
votes
1 answer
VS code terminal : Activate.ps1 cannot be loaded because running scripts is disabled on this system
I created a virtual environment in python, now while activating the same from my command line in vscode I am getting the error
PS C:\Users\hpoddar\Desktop\WebDev\ReactComplete\DjangoReact\ArticlesApp\APIProject> ..\venv\scripts\activate …

Himanshu Poddar
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11
votes
4 answers
WinRT - MessageDialog.ShowAsync will throw UnauthorizedAccessException in my custom class
I Want to write my own control, when the ctor is invoked, a MessageBox is shown.
public class Class1
{
public Class1()
{
ShowDialog();
}
void ShowDialog()
{
SynchronizationContext context =…

glover
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11
votes
7 answers
C# Registry SetValue throws UnauthorizedAccessException
Before you try to answer this with, "Do a quick Google search." I'd like to point out that I have already. Here is the situation, I have the following method that attempts to modify a registry key value. The problem I'm getting is that when…

Middas
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10
votes
3 answers
UnauthorizedAccessException with path to file in temp folder from Zip archive
I'm trying to make my image viewer app work with files that are opened by clicking an image file directly inside a Zip folder (using windows explorer to browse Zip files). The application seems to be run with correct command line, which looks like…

user1306322
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9
votes
2 answers
Can using FileShare.Delete cause a UnauthorizedAccessException?
I'm opening a file with for reading that I had previously created in the user's %TEMP% folder, using the following code:
new FileStream(cacheFileName, FileMode.Open, FileAccess.Read, FileShare.Read | FileShare.Delete);
On some user's computers,…

Omer Raviv
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6
votes
3 answers
How to handle UnauthorizedAccessException from User Code
In a Windows Application I have, I am doing some changes in registry like deleting a particular key, in some test scenarios like in a Vista machine with its UAC put on, I'm getting System.UnauthorizedAccessException. My code would look something…

Niranjan
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6
votes
1 answer
UnauthorizedAccessException "Access to the path is denied" from File.ReadAllBytes in LOCALAPPDATA
This exception is occurring intermittently for the same user for the same machine, when reading files within %LOCALAPPDATA%.
Research
I have checked all the possible duplicates currently offered by this title (there are a lot). There is one relating…

Richardissimo
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6
votes
1 answer
Access to path is denied - File.Move fails but File.Delete works
I'm trying to perform a simple File.Move operation but I get
System.UnauthorizedAccessException exception - Access to the path is denied.
To my knowledge, nothing is using the file I am trying to move (containing folder is closed as well). I can…

Roka545
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6
votes
1 answer
System.AddIn, AddInStore.Rebuild causes UnauthorizedAccessException
my application is loading addins dynamically and when i add
a new module i need to Rebuild the Pipeline segments cache,
but the app doesn't have write permissions in the program folder
and causes a UnauthorizedAccessException.
i don't want to copy…

scorpion456
- 61
- 1
6
votes
3 answers
UnauthorizedAccessException while saving a file
I have the following code in a Windows 8 C# app which fetches an image from a server and stores it:
private async Task httpFetcher()
{
HttpClient httpClient = new HttpClient();
HttpRequestMessage request = new…

ReignOfComputer
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4
votes
1 answer
trying to use Directory .EnumerateFiles("*.jpg", SearchOption.AllDirectories);
So i'm using Directory.GetFiles(folder, "*.jpg", SearchOption.AllDirectories). When i try it on the c:\ drive in windows 7, since windows 7 still had c:\documents and settings (for legacy systems like xp), it's a protected folder. It's only…

darthwillard
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