DirectX is a set of application programming interfaces (APIs) that enables your games and programs to communicate with and use your computer's graphics processing unit (GPU), memory, and input devices, such as game controllers. If DirectX experiences problems, your games and multimedia applications may crash, and you may see the error message "Direct3D could not allocate enough memory to complete the call" on your Windows 10 or 11 PC.

If you're lucky, just freeing up memory by Close unwanted applications and programs Or restarting your computer should resolve the issue. However, if the error persists even after that, you can try the following tips to fix the underlying issue.
1. Run the Windows Memory Diagnostic Tool
A common reason why DirectX displays an out of memory error is if your computer is experiencing random access memory (RAM) issues. Both Windows 10 and 11 include a tool called Windows Memory Diagnostic, which can scan your system for any memory issues. Running it requires a restart of your computer, so save all your work before following the steps below.
Step 1: Click the search icon on the taskbar, and type Windows Tools, then press Enter.

Step 2: Double-click an option. Windows Memory Diagnostic.



Once your computer restarts, the diagnostic tool will scan your computer for RAM issues.
2. Increase the size of the migration file
Another thing you can do to fix the DirectX “Could not allocate enough memory” error is: Increase virtual memory, also known as the paging file size. This will provide more virtual memory for your system and applications when physical RAM is insufficient.
Step 1: Press the Windows key + S keyboard shortcut to open the search menu. Type display. Advanced system settings And press Enter.


Step 3: In the Performance Options window, switch to the tab Advanced Options and click the . button changing.

Step 4: Uncheck the option Automatically manage paging file size for all drives.

Step 5: Select the drive where your game or application is located and click the option. Custom SizeEnter the required values in the Initial Size and Maximum Size text boxes.
Note: The initial size should be 1.5 times the size of your RAM, and the maximum size can be up to 3 times the size of your RAM.


3. Clear the DirectX cache
The DirectX It stores cache data on your computer to improve application loading and response times. However, if this data cannot be accessed, it may prevent DirectX from working properly on Windows and cause errors. Try clearing the DirectX cache to see if this resolves the issue.
Step 1: Click the search icon on the taskbar, and type Disk Cleanup, then press Enter.


Step 3: Under the files to delete, select the option DirectX Shredder Cache and click OK.


4. Adjust in-game graphics settings
Does DirectX error appear? “Could not allocate enough memory” Only in a specific game or application? If so, consider lowering the graphics settings in that game or application to reduce the memory required. This should work if the error is caused by the game or application trying to use more memory than is available on your computer.
5. Update DirectX
Updating DirectX can help you get the latest fixes and improvements and avoid errors like "Could not allocate enough memory" on your Windows 10 or 11 PC. Microsoft distributes DirectX updates through Windows Update, so you'll need to check for updates there.
Press the Windows key + I keyboard shortcut to open the Settings app. In the tab Windows UpdateClick the Check for Updates button to download and install any DirectX updates.

6. Update or reinstall the graphics driver
Graphics driver issues on Windows can also cause the DirectX "Unable to allocate enough memory" error. So, if nothing works, update the problematic driver as a last resort.
Step 1: Right-click on the Start icon to open the menu. Power User and select Device Manager From the Power User menu.

Step 2: Click the small arrow to the left of Display Adapters to expand it. Then, right-click graphics driver Your and select Update Driver.

Follow the on-screen prompts to complete the driver update and see if that resolves the error. If the error persists even after that, you will need to Uninstall the driver Using Device Manager. Then, restart your computer and allow Windows to reinstall the missing driver during boot.

No more DirectX errors
The last thing you want to experience when you're ready to relax with some gaming is a DirectX error like "Unable to allocate enough memory." We hope the tips above help you fix the error, so you can enjoy your gaming session in peace.




