What clearing cache does and why you might want to

Cache is temporary data your computer stores to make programs and websites load faster the next time you use them. When you clear cache, you delete those stored files. Your browser, Windows itself, and individual programs all keep their own caches.

Clearing cache can free up disk space, fix a program that is running slowly or crashing, or remove browsing history if you share your computer. The tradeoff is that websites and programs will load slightly slower the first time you use them after clearing, because your computer has to fetch fresh data instead of using the stored copy.

You do not need to clear cache constantly. Once every few months is normal for most people. Clear it more often if you are running low on storage space, if a program is misbehaving, or if you use a shared computer and want to remove your activity.

Key Takeaways

  • Browser cache lives in your browser settings and is separate from Windows cache — you can clear one without the other.
  • Windows has a built-in Disk Cleanup tool that removes temporary files, old updates, and system cache in one step.
  • Clearing cache does not delete your passwords, bookmarks, or saved login information unless you specifically choose those options.
  • Third-party cleaning tools like CCleaner can clear cache from multiple programs at once, but Windows Disk Cleanup handles most needs.
  • After clearing cache, websites and programs will load normally again within a few uses as new cache builds up.

Clear browser cache in Chrome, Firefox, or Edge

Each browser stores cache differently, but the process is similar. Open your browser and use the keyboard shortcut Ctrl + Shift + Delete (Windows) to jump straight to the cache-clearing screen. If that does not work, go to Settings or Preferences and look for Privacy, History, or Browsing Data.

When the clearing window opens, you will see a time range dropdown — choose "All time" if you want to clear everything, or pick a specific range like "Last 24 hours" or "Last 7 days". Make sure Cached images and files is checked. You can leave passwords and autofill data unchecked unless you want to remove those too. Click the clear or delete button and wait a few seconds.

In Chrome: Settings → Privacy and security → Clear browsing data. In Firefox: Settings → Privacy & Security → Cookies and Site Data → Clear Data. In Edge: Settings → Privacy, search, and services → Clear browsing data.

Use Windows Disk Cleanup to clear system cache

Windows stores temporary files, old installation files, and system cache in a folder called Temp. The easiest way to clear this is with the built-in Disk Cleanup tool. Press the Windows key, type "Disk Cleanup", and open it.

Disk Cleanup will scan your drive and show you a list of file types you can delete. Check the boxes next to "Temporary files", "Recycle Bin", "Temporary internet files", and "Windows Update Cleanup" — these are safe to remove. Leave system files and other items unchecked unless you know what they are. Click OK and confirm the deletion.

If Disk Cleanup does not show much to delete, your cache is already small. If you want more control, you can manually delete the Temp folder: press Windows key + R, type %temp%, and press Enter. Select all files (Ctrl + A), delete them, and skip any files that say they are in use.

Clear cache from individual programs

Some programs like Spotify, Steam, or Microsoft Office keep their own cache separate from your browser and Windows. If a program is slow or crashing, clearing its cache can help. Look in the program's Settings or Preferences for options like "Clear cache", "Clear data", or "Storage".

For Spotify: Settings → Storage → Delete cache. For Steam: Settings → Downloads → Clear read Cache. For Microsoft Office: File → Options → Trust Center → Trust Center Settings → Privacy Options → Delete all cached content. If you cannot find the option, search the program's help or support page for "clear cache".

Clearing a program's cache will not delete your account, settings, or saved files — only the temporary data the program stored to speed itself up.

When to use a third-party cleaning tool

CCleaner and similar tools can scan your entire computer and clear cache from your browser, Windows, and dozens of programs in one click. The free version works well for most people. read it from the official CCleaner website, install it, and run the scan — it will show you what it found and let you choose what to delete before it does anything.

Third-party tools are useful if you want to clean multiple programs at once or if you are not comfortable navigating each program's settings. However, they are not necessary — Windows Disk Cleanup and your browser's built-in tools handle the most important cache. Be cautious with tools that promise to "speed up" your computer dramatically or that ask for payment to remove "threats" — those are often misleading.

Stick with well-known tools like CCleaner, Wise Disk Cleaner, or BleachBit if you choose to use a third-party option. Always read from the official website, not from a third-party read site.

What cache clearing will and will not do

Clearing cache will free up disk space (usually a few hundred megabytes to a few gigabytes, depending on how much you have accumulated), make a slow program run faster if cache was corrupted, and remove browsing history from your browser. It will not delete your passwords unless you specifically checked that box, will not remove your bookmarks or saved sites, and will not uninstall programs.

Clearing cache will not make your computer faster in general — it only helps if cache was actually slowing something down. If your computer is slow for other reasons (too many programs running at startup, a full hard drive, or an aging hard drive), clearing cache will not fix that. Clearing cache also will not remove viruses or malware — use antivirus software for that.

Frequently Asked Questions

Will clearing cache delete my passwords and saved logins?

No, unless you specifically check the box for "Passwords" or "Autofill data" when clearing. Most cache-clearing tools separate cached files from saved passwords by default. If you only want to clear cache and keep your logins, make sure those boxes are unchecked.

How much space will clearing cache free up?

It varies widely depending on how long it has been since you last cleared cache and how much you browse. Most people see 500 megabytes to 2 gigabytes freed. If you have not cleared cache in years, you might see more. Check how much space Disk Cleanup says it will free before you confirm.

Is it safe to delete files in the Temp folder manually?

Mostly yes, but some files in the Temp folder are in use by running programs. Windows will skip those and let you delete the rest. If you get an error saying a file is in use, just leave it — it is not taking up much space. Using Disk Cleanup is safer because it handles this automatically.

Should I clear cache before selling or giving away my computer?

Yes. Clear your browser cache, use Disk Cleanup, and consider using a tool like Eraser to securely delete files so they cannot be recovered. For sensitive data, a full factory reset of Windows is the most thorough option.

Will clearing cache slow down my internet?

No. Websites will load slightly slower the first time you visit them after clearing cache because your browser has to read fresh data. After that, cache rebuilds and speeds return to normal. The slowdown is usually not noticeable.