4 Ways to Fix DirectX ‘Could Not Allocate Sufficient Memory’ Error on Windows 11

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Common Fixes

Fix 1: Increase the Paging File Size

Windows kernel uses the paging file size for carrying out virtual memory operations. Increasing the paging file sizeboosts the virtual memory, eliminating the DirectX ‘Could not allocate sufficient memory’ error on Windows 11.

Step 1:Press theWindows key> searchView advanced system settings> click to open it.

Step 2:Switch to theAdvancedtab > clickSettingsunder Performance.

Step 3:SelectChangeunder the Virtual memory section.

Step 4:UncheckAutomatically managing paging file size for all drives, highlight your desired drive, enableCustom size, and set your preferredInitialandMaximum size.

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.

Step 5:SelectSetto apply changes and clickOK.

Fix 2: Clear the DirectX Cache

A corrupt DirectX cache can often create an insufficient memory allocation error on Windows 11. Clearing it manually should fix the issue.

Step 1:Press theWindows key> searchDisk Cleanup> click to open it.

Step 2:Select your Windows installation drive > clickOK.

Step 3:CheckDirectX Shader Cachein the list > clickOKto remove it. SelectDelete Fileswhen prompted to confirm the action.

Fix 3: Update or Reinstall the Graphics Driver

A corrupt cache and an obsolete graphic driver are common causes of DirectX’s ‘Could not allocate sufficient memory’ error. Update it manually to restore normalcy.

Step 1:Right-click theStart iconto open the Power User Menu and selectDevice Manager.

Step 2:ExpandDisplay adapters, right-click your graphic driver, and selectUpdate driver.

If the error persists,uninstall the driverusingUninstall deviceand restart your PC to let Windows 11 install it afresh.

Fix 4: Underclock the Chipset

If nothing works, you can underclock your CPU by accessing the BIOS settings. This decreases resource consumption and fixes the DirectX insufficient memory allocation error.

Caution:Reducing the CPU clock frequency may cause voltage fluctuations, making the processor unstable.

Step 1:Press theWindows + Xshortcut to open the Power user Menu, selectShut down or sign out, and clickRestart.

Step 2:Open theBIOS setupby pressing the dedicated key ( e.g., F2 ) at the startup.

Step 3:Locate theCPU Clock RatioorCPU Multiplier, lower its existing value, and save changes.

Note:These settings may differ on your Chipset.

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Last updated on 22 May, 2024

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