Google Chrome Error Code ERR_CACHE_OPERATION_NOT_SUPPORTED: How to Fix It

Easy 10-30 minutes Medium Severity Verified June 2026
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Error Code
ERR_CACHE_OPERATION_NOT_SUPPORTED
Brand
Google Chrome
Product Type
browser
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
10-30 minutes
The ERR_CACHE_OPERATION_NOT_SUPPORTED error in Google Chrome means the browser attempted a caching action — such as storing or retrieving a web page — that the current cache configuration does not allow or recognize. This typically happens when Chrome's cache files become corrupted, when a browser flag or policy interferes with normal caching behavior, or when an extension conflicts with how Chrome stores data. The good news is this is a software-level issue that you can usually resolve in a few minutes without any technical expertise.
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Tools You'll Need

How to Fix Error Code ERR_CACHE_OPERATION_NOT_SUPPORTED

  1. Force Refresh the Page

  2. Clear Chrome's Browser Cache and Cookies

    Clearing cookies will sign you out of websites. Make sure you know your passwords before proceeding.

  3. Disable All Browser Extensions

  4. Reset Chrome Flags to Default

  5. Check and Disable Chrome Policies

    Only run policy reset commands on a personal device. On a work or school machine, contact your IT administrator instead.

  6. Delete Chrome's Cache Folder Manually

    Do not delete the entire 'Default' profile folder — only the 'Cache' subfolder. Deleting the full profile will erase your bookmarks, passwords, and settings.

  7. Update Google Chrome to the Latest Version

  8. Reset Chrome Settings to Default

  9. Reinstall Google Chrome

    Back up any important data such as bookmarks by exporting them first via Chrome's Bookmark Manager (Ctrl+Shift+O) before uninstalling.
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When to Call a Professional

This error is almost always resolvable without professional help. However, if you are on a managed work or school device and the error is caused by enforced IT policies, contact your IT department or system administrator — they have the access needed to modify group policies and cache restrictions that end users cannot change. If reinstalling Chrome does not fix the issue and the error appears across multiple browsers, it may indicate a deeper operating system or disk problem, in which case a computer technician can run disk diagnostics and repair corrupted system files.

Frequently Asked Questions

What causes ERR_CACHE_OPERATION_NOT_SUPPORTED in Chrome?
This error is most commonly caused by corrupted Chrome cache files, a conflicting browser extension, an experimental Chrome flag that alters caching behavior, or an enterprise/group policy that restricts cache operations. It can also appear after a Chrome update if residual cache data from the old version is incompatible with the new one.
Does ERR_CACHE_OPERATION_NOT_SUPPORTED affect all websites or just one?
It can affect either. If only one website triggers the error, the issue is likely a corrupted cached file specific to that site — clearing the cache or doing a hard refresh usually fixes it. If the error appears on many or all websites, the problem is more systemic, such as a corrupt cache folder, a conflicting extension, or a Chrome policy, and the full troubleshooting steps above are needed.
Will clearing my cache delete my bookmarks or passwords?
No. Clearing Chrome's cache and cookies removes temporary web files and login sessions, but it does not delete your saved bookmarks, passwords stored in Chrome, or your browsing history unless you specifically check that box. You will be signed out of most websites and will need to log back in.
Can a VPN or proxy cause ERR_CACHE_OPERATION_NOT_SUPPORTED?
Yes. VPN extensions or proxy settings can alter how Chrome handles network requests and caching. Try disabling your VPN extension or system-level VPN, then reload the page. If the error goes away, the VPN or proxy is interfering with Chrome's cache operations. You may need to whitelist your browser in the VPN's settings or switch to a different VPN client.
Is ERR_CACHE_OPERATION_NOT_SUPPORTED a virus or security threat?
No, this error is not a sign of a virus or malware on its own. It is a technical cache handling error within Chrome. However, if you also notice unusual browser behavior such as unexpected redirects, new toolbars you did not install, or pop-up ads, it is worth running a malware scan using a trusted tool like Malwarebytes in addition to the cache fixes described above.

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