- The Application has been blocked from accessing graphics hardware is an error message that can appear at the bottom right of the Windows 10 desktop. The error message appears when some users try to play Windows or browser games.
- The error can be due to corrupted graphics card system files, so the System File Checker, which scans for and repairs corrupted system files, can potentially resolve the issue.
- System errors are usually pretty serious so don't delay the intervention. Read our article from the System errors section for possible solutions.
- If an error is nagging you, go to our Windows 10 errors Hub for a quick solution.
The Application has been blocked from accessing graphics hardware is an error message that can appear at the bottom right of the Windows 10 desktop.
The error message appears when some users try to play Windows or browser games.
It is a graphics issue that stops games from running. These are some of the resolutions that might fix the Application has been blocked issue in Windows 10.
What to do if Application has been blocked from accessing graphics hardware on Windows 11?
This issue can appear if you don’t have the necessary privileges which may result in Access is denied message. If you can, try using an administrative account and check if that helps.
In some instances, it’s even possible that the administrator has blocked you from running an app, and if that’s the case, you might have to contact the administrator.
This issue can also occur if your Nvidia graphics card is not detected. Users reported this issue in Firefox and in games, but luckily for you today we’ll show you how to unblock an application from accessing graphics hardware.
What to do if apps have been blocked from accessing GPU
- Run a System File Checker Scan
- Reinstall the graphics card driver
- Edit the registry
- Roll Windows 10 back to a System Restore Point
How can I fix Application has been blocked errors?
1. Run a System File Checker Scan
The Application has been blocked error can be due to corrupted graphics card system files. So the System File Checker, which scans for and repairs corrupted system files, can potentially resolve the issue.
This is how users can run an SFC scan within Windows 10.
- Open the Win + X menu with the Windows key + X keyboard shortcut.
- Click Command Prompt (Admin) to open the Prompt’s window.
- Input ‘DISM.exe /Online /Cleanup-image /Restorehealth’ within the Command Prompt, and press the Enter key.
- Thereafter, enter sfc /scannow and press Return to initiate an SFC scan that might last for about 20-30 minutes.
- Restart Windows if the system file scan fixes files.
2. Reinstall the Graphics Card Driver
The Application has been blocked error often arises as a consequence of an incompatible or corrupted graphics card driver. Some users have stated that the error message pops up after a Windows 10 build update.
So the graphics card driver might be misconfigured after an update Thus, reinstalling the video card driver might resolve the issue. Users can reinstall the graphics card driver as follows.
- Press the Windows key + X keyboard shortcut, and select Device Manager on the Win + X menu.
- Double-click Display adapters to expand that category.
- Right-click the graphics card and select the Uninstall device.
- Select the Delete the driver software for this device option on the dialog box window that opens.
- Then click the Uninstall button.
- Press the Scan for hardware changes button to reinstall the driver.
Alternatively, if you need more assistance, you can get a dedicated driver updater software. It can save you some time and hassle with automatic updates and additional optimization features.
3. Edit the Registry
Increasing the TDR (Timeout Detection and Recovery) time is another potential resolution for the Application has been blocked error. Users can raise the TDR time to about eight seconds.
To do that, edit the registry as follows.
- Enter regedit in Cortana’s search box.
- Right-click regedit and select Run as administrator.
- Then browse to the ComputerHKEY_LOCAL_MACHINESYSTEMControlSet001ControlGraphicsDrivers or ComputerHKEY_LOCAL_MACHINESYSTEMControlSet002ControlGraphicsDrivers registry key path.
- Select the GraphicsDrivers key on the left of the window.
- Right-click an empty space on the right of the window and select QWORD (64-bit) Value. Alternatively, select DWORD (32-bit) Value if you have a 32-bit Windows platform.
- Type TdrDelay as the QWORD or DWORD title.
- Double-click TdrDelay to open the window shown directly below.
- Then enter 8 in the Value data text box, and click the OK button.
- Restart the laptop or desktop.
4. Roll Windows 10 Back to a System Restore Point
System Restore can fix numerous issues as it undoes system changes after a selected restore point.
So that utility might also fix the Application has been blocked error if users can select a restore point that will roll Windows 10 back to a time when the error message did not pop up on the Windows 10 desktop.
This is how users can roll back to the previous version of Windows 10.
- Open Run with its Windows key + R keyboard shortcut.
- Enter ‘rstrui’ in Run, and click the OK button.
- Click the Next button on the System Restore window that opens.
- The System Restore window might include a Show more restore option. Select that option if you can expand the restore point list.
- Choose a restore point to roll Windows 10 back to.
- Click the Next and Finish buttons.
Note that users can’t roll Windows 10 back to previous build versions with System Restore. However, the Settings app will temporarily include an option to restore the previous version.
Then users can still restore a previous Windows 10 version for about 10 days after a build update.
To do that, click the Type here to search button on the taskbar. Then enter update in the search box, and select Recovery options to open Settings.
Press the Get started button under the Go back to previous Windows 10 version subheading.
Restoring your system to a previous state can fix a number of system issues. A simpler way to safely restore your system is using a specialized tool that can do all the work for you.
Restoro will automatically scan your PC for problematic files and will replace all critical Windows system files that are malfunctioning with previous versions that are working perfectly.
Here’s how you can perform this action:
- Download and install Restoro.
- Launch the application.
- Wait for it to find any system stability issues.
- Press Start Repair.
- Restart your PC for all the changes to take effect.
The built-in system restoration tool will revert your Windows to a previous version, therefore you can lose some precious data that was saved after the restoration point was made. You can always return your system to its pre-repair condition.
Disclaimer: This program needs to be upgraded from the free version in order to perform some specific actions.
Those resolutions might kick-start games that the Application has been blocked error message pops up for. If anybody has another resolution that fixes the same issue, feel free to share it below.
Frequently Asked Questions
Graphics hardware is computer hardware that generates computer graphics and allows them to be shown on a display, usually using a graphics card (video card) in combination with a device driver to create the images on the screen.
The first thing you should do is to run a System File Checker scan. If that doesn’t solve the problem, follow our step-by-step guide in solving this issue.
Stand-alone graphics cards have their own memory to use but an integrated graphics processing unit (GPU) uses the system’s memory instead. Therefore, the video card will use a portion of the available memory for graphics processing.