Windows uses a “Page File” (also known as Virtual Memory) as a temporary overflow area on your hard drive when your physical RAM is full. Without a functioning paging file, your computer may sluggishly crawl, refuse to launch apps, or show the dreaded error: “Your system has no paging file, or the paging file is too small.”
While modern versions of Windows usually manage this automatically, errors can occur if disk space is critically low, if permissions are corrupt, or if a user accidentally disabled the feature while trying to “optimize” their SSD.

Common Causes for the Error
In Windows 10 and 11, this error is typically caused by one of three things:
- Lack of Disk Space: The drive where the page file lives (usually C:) is completely full.
- Corrupt Permissions: The “System” account has lost “Full Control” permissions of the root C: drive.
- Manual Configuration Errors: The page file was manually set to a size that is too small for the current workload.
FIX:
Step 1: Verify Paging File Settings Before checking permissions, ensure Windows is actually allowed to manage the file:
- Type “Advanced System Settings” in the Start menu and press Enter.
- Under the Advanced tab, click Settings in the Performance section.
- Go to the Advanced tab and click Change under Virtual Memory.
- Ensure “Automatically manage paging file size for all drives” is checked. If it was unchecked and set to “No paging file,” this was your problem.
Step 2: Fix NTFS Permissions If the settings are correct but the error persists, you must restore permissions to the “System” account:
- Open File Explorer, right-click your C: drive, and select Properties.
- Go to the Security tab and click Advanced.
- Ensure that SYSTEM and Administrators both have Full Control.
- If they are missing, click Add, then Select a principal. Type SYSTEM and click OK, then check Full Control. Repeat this for Administrators.
- Click OK and restart your computer.
SSD Myth-Busting
Should you disable the Page File for SSDs?
A common “tweak” found online suggests disabling the paging file to “save” your SSD from excessive writes. Do not do this. Modern SSDs can handle the writes easily, and many Windows processes require a paging file to function properly. Disabling it will lead to system instability and the very error message this guide is designed to fix.
For additional training resources, check out our online IT training courses.
Check out our extensive IT book series.






