OK, I finally decided to bite the bullet and UPGRADE my Toshiba C55-A5310 from windows 8.1 to Windows 10 21H1. I had already upgraded the hardware a couple of years ago by Cloning the hard drive (slow as dirt) to an SSD and the memory to 16Gb. I installed the windows latest update tool to a flash drive and tried to run the upgrade from it in windows and it failed! I made sure I had all the windows 8.1 updates, ran SFC, and did trim on the SSD. Next I downloaded the media creation tool to the hard drive and ran it from there and same failure! Ran SetupDiag and found the error was "
SetupDiag reports abrupt down-level failure!
Error: DISM Provider Store: PID=2692 TID=6468 Failed to get the provider DISM Package Manager from the remote provider store. - CProxyProviderStore::GetProvider(hr:0x80004005)
Searched for remedy and one guy said to download the ISO and run it from that. My solution was I had a bootable flash drive from last year with 1909 on it. Copied all the files to a new folder on my C drive and ran setup from there and it installed fine. It did all the updates but It was still 1909. Tried to get it to Update to 2004 but would just flash the update button! Found some info about MS Update assistant, downloaded that and it took about 4 hrs but finally got it up to 21H1😁 All good now and have All updates with all my programs and files! I had similar issues with a friend's computer (Dell 780 with windows 7) last week. I tried upgrading from the USB and it failed. After downloading the creation tool to his hard drive and running it, I got a good Upgrade. Seems like the 21H1 Upgrade is hit or miss!!
SetupDiag reports abrupt down-level failure!
Error: DISM Provider Store: PID=2692 TID=6468 Failed to get the provider DISM Package Manager from the remote provider store. - CProxyProviderStore::GetProvider(hr:0x80004005)
Searched for remedy and one guy said to download the ISO and run it from that. My solution was I had a bootable flash drive from last year with 1909 on it. Copied all the files to a new folder on my C drive and ran setup from there and it installed fine. It did all the updates but It was still 1909. Tried to get it to Update to 2004 but would just flash the update button! Found some info about MS Update assistant, downloaded that and it took about 4 hrs but finally got it up to 21H1😁 All good now and have All updates with all my programs and files! I had similar issues with a friend's computer (Dell 780 with windows 7) last week. I tried upgrading from the USB and it failed. After downloading the creation tool to his hard drive and running it, I got a good Upgrade. Seems like the 21H1 Upgrade is hit or miss!!