Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteiTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
Temporary internet files are cached copies of web pages, images, and other content that a browser keeps so sites can load faster. If they will not delete, a file may still be in use, the browser may not be set to clear cache when it closes, or you may be checking synced or cloud data instead of the local cache. Start with your browser’s built-in clear-data control rather than manually removing files from its profile.
What temporary internet files are—and what clearing them does
A browser cache stores local copies of site content for reuse. Microsoft describes these files as a way to help pages load faster (Microsoft Support). Clearing cached images and files can help with page-loading or formatting problems and reclaim local storage. The browser may download that content again the next time you visit a site.
Cache is separate from cookies, browsing history, saved passwords, and autofill data. Choose only the categories you intend to remove: clearing cookies, for example, can sign you out of websites, while deleting saved information has different consequences (Microsoft Support; Google Account Help).
Why cache deletion can appear to fail
A cache file is locked or in use
A browser or another process may still be using a cache file when deletion is attempted. Microsoft’s WinINet documentation says the DeleteUrlCacheEntry call can fail with ERROR_ACCESS_DENIED when the file is locked or in use (Microsoft Learn: Caching). That explains one kind of access-denied failure, but it does not establish the cause of every cache that seems to remain.
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The browser does not clear cache when it closes
Microsoft Edge does not clear cached images and files on exit by default. Edge users can choose that behavior when the setting is not controlled by an administrator’s policy (Microsoft Learn: ClearCachedImagesAndFilesOnExit). If you expected automatic cleanup, the default may explain why cached data remains between sessions.
You are looking at a different copy of browsing data
Local browser data and cloud or synced browsing data are distinct. Microsoft notes that deleting data from its privacy dashboard does not, by itself, delete the copy stored on the device (Microsoft Support). Check whether the data you want to remove is on this device, associated with sync, or both.
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The browser has cached content again
Browsers create cache as you visit sites. If you revisit pages after clearing data, some cached content may already have been recreated. That does not necessarily mean the original deletion failed.
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Open Settings > Privacy, search, and services > Clear browsing data. Microsoft documents this route, though labels may change in later releases (Microsoft Support).
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Choose the time range you want to clear.
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Select Cached images and files. Leave cookies, history, passwords, or other categories unchecked unless you also intend to remove them.
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Run the clear-data action, then check the browser again.
In other browsers, use that browser’s own clear-browsing-data controls. Google explains that Chrome stores website information in cache and cookies; removing them can help with loading or formatting problems or free local storage. Sites may load more slowly at first while content is fetched again, and clearing cookies can require signing in again (Google Account Help). Google directs users of Firefox, Safari, and other browsers to their respective support resources for browser-specific steps.
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Close the browser and other applications that might be using its profile, restart the device, and try the browser’s built-in clear-data control again. Restarting is a cautious troubleshooting step based on Microsoft’s documentation that a locked or in-use file can prevent deletion; it is not a guaranteed fix.
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Confirm whether you are checking local device data or cloud and synced data, and use the relevant browser or account controls for each.
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If a particular access-denied or in-use error persists, record its exact wording and seek browser or operating-system support. Microsoft documents the lock behavior, but does not provide a universal end-user method to find and release every possible file lock.
Avoid force-deleting cache files from a browser profile that may still be active. The official guidance cited here points to built-in browser controls; it does not establish manual deletion as a safe fix.
Quick Recap
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