How to increase Icon Cache size in Windows 10/8/7

Some Windows 10 users have been reporting that their desktop or explorer icons load slow when they start the PC. If you are facing such an issue or if you find that your icons look weird or corrupted, you may want to increase Icon Cache size and see if it helps you.

You may want to first rebuild Icon cache manually or using our 1-click freeware Thumbnail and Icon Cache Rebuilder for Windows 10, and see if it resolve your problem. Windows 8 and Windows 7 users may want to this post on how to purge & rebuild the Icon Cache in Window 7/8. If it doesn’t not help, proceed – as increasing the icon cache size is known to help.

Increase Icon Cache Size

Increase Icon Cache Size

To begin, first create a system restore point. Should something go wrong, you will be able to restore your computer back to this point.

Having done that, open WinX Menu and select Run. Type regedit and hit Enter to open the Registry Editor.

Now navigate to the following registry key:


Now right-click and create a new REG_SZ (String Value) and name it Max Cached Icons.

Give it a value of 4096 (4MB) or 8192 which is 8MB.

Save and exit the Registry Editor and restart your computer.

See if this gives you positive results.

If the results are not to your expectation, you may delete the created REG_SZ (String Value) or change its value to 500, which is the default value. You may also restore your computer to the created restore point, if you wish.

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Anand Khanse is the Admin of, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.