Use Disk Cleanup to remove your thumbnails
Your thumbnails use thumbnail cache, but if the thumbnail cache is corrupted you might experience this problem. To fix the issue, you need to remove the thumbnail cache and Windows will recreate it. This is a simple process and you can do it by following these steps:
- Press Windows Key + S and enter disk cleanup. Select Disk Cleanup from the menu. Alternatively, you can just open the Start Menu and type disk cleanup to search for it.
- Once Disk Cleanup starts you’ll be asked to select the drive you wish to scan. Select your System drive, by default it should be C, and click on OK.
- Wait while Disk Cleanup scans your drive.
- When Disk Cleanup window appears, check Thumbnails from the list and click on OK. Few users are suggesting to select Temporary files as well, so you might want to do that.
Windows will now remove the thumbnail cache from your PC. Once the thumbnail cache is removed, Windows will generate it again and your problem should be resolved completely.
There are 21 different ways to fix this, No. 7 is working for me, so I copied it here. This is the source URL: https://windowsreport.com/thumbnail-previews-not-showing/
Also other reference:
I was just trying to make a few Windows 10 VM images, so I started to use the same old tool: Sysprep. To my surprise, it didn’t work, while there’s no problem a few days ago on Windows Server 2012 and 2008. This time on Windows 10, it gave this pop up after I ran the same command (in my previous blog).
The log stopped after showing these lines:
SYSPRP Entering SysprepGeneralizeValidate (Appx) – validating whether all apps are also provisioned.
SYSPRP Package Windows.MiracastView_184.108.40.206_neutral_neutral_cw5n1h2txyewy was installed for a user, but not provisioned for all users. This package will not function properly in the sysprep image.
SYSPRP Failed to remove apps for the current user: 0x80073cf2.
SYSPRP Exit code of RemoveAllApps thread was 0x3cf2.
SYSPRP ActionPlatform::LaunchModule: Failure occurred while executing ‘SysprepGeneralizeValidate’ from C:\Windows\System32\AppxSysprep.dll; dwRet = 0x3cf2
SYSPRP SysprepSession::Validate: Error in validating actions from C:\Windows\System32\Sysprep\ActionFiles\Generalize.xml; dwRet = 0x3cf2
SYSPRP RunPlatformActions:Failed while validating Sysprep session actions; dwRet = 0x3cf2
SYSPRP RunExternalDlls:An error occurred while running registry sysprep DLLs, halting sysprep execution. dwRet = 0x3cf2
SYSPRP WinMain:Hit failure while pre-validate sysprep generalize internal providers; hr = 0x80073cf2
SYSPRP Shutting down SysPrep log
So I did a little research, found the thread in this forum is quite interesting.
and this as well
Anyway, after tried a few easy steps, I gave up. I don’t really need to clone a bunch of Windows 10 machines, besides install a new Windows 10 client is pretty easy and quick after the evolution of so many generations of Windows.
This issue seems to me a bug in the recent creator update. Microsoft has been trying to unify all its platforms – desktop, surface, phone, even server, but it is still far from there, this time these are a few dev leftover in a public release.