Fix Slow Thumbnail Previews on Windows 10 & 11

Learn how to fix slow-loading file previews by increasing the Windows thumbnail cache size with the Registry Editor. My step-by-step tutorial will show you how to modify the registry values safely so Windows can cache more thumbnails. This will speed up your file browsing experience. ​Warning: Modifying the registry can cause system issues if done incorrectly, so follow the steps exactly as shown or back up your registry first. #howto #windowstips #techtutorials #techhacks #pcperformance