這幾個地方加到防毒例外清單
\WSUS\WSUSContent
\WSUS\UpdateServicesDBFiles
\SoftwareDistribution\Datastore
\SoftwareDistribution\Download
然後這三個批次都跑跑看
https://gallery.technet.microsoft.com/scriptcenter/6f8cde49-5c52-4abd-9820-f1d270ddea61#content
https://gallery.technet.microsoft.com/scriptcenter/Optimize-and-cleanup-of-eb9d8640
https://gallery.technet.microsoft.com/scriptcenter/WSUS-Clean-Powershell-102f8fc6