J Jim Wells Member Joined Nov 11, 2015 Posts 22 Jul 12, 2020 #1 My Windows 10 PC has a problem with displaying image thumbnails in the Windows File Explorer. Sometimes it displays blank white icons, sometimes it displays the generic blue and green landscape JPEG icon, sometimes it displays a mixture of the generic icon and proper image thumbnails. If I’m really lucky it displays a full set of thumbnails. As a keen photographer, this a significant issue, and I’m hoping the Sysnative community will be able to help. In Explorer the green progress bar creeps along the address bar. Often I’ve finished whatever I’m doing before I find out whether it will complete or not. At the moment it in within a few pixels of completing the refresh on an Explore window for “This PC” – but has been for some time so I’m not expecting it to complete. I do not know whether it is connected or a separate problem, but right clicking on a file and attempting to use “Open with >” frequently (always?) causes Explorer to crash. I’ve put some information on what I’ve already tried below, but I’m totally open to trying things again, in a different order, a slight variation etc. Any advice you can offer would hugely appreciated. Thanks Jim I’ve tried a number of things, based on advice found online (probably not in this order): Deleted thumbnails using the disk clear up tool Adjusted the explorer settings so that it opens with “This PC” instead of “Quick Access” Adjusted Explorer settings to tick “Launch folder windows in a separate process” Created a “Max Cached Icons” item in the registry under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer Altered registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\VolumeCaches\Thumbnail Cache to 0 Run: sfc /scannow Run: Dism /Online /Cleanup-Image /ScanHealth. The outcome was “No component store corruption detected.” Run chkdsk/r a couple of times – as far as I can tell the finds problems and fixes them, but I have to leave it running overnight, and when I come back to the PC in the morning the machine has re-started. Some of these have appeared to solve the problem temporarily, but none have given a lasting solution.