Some weeks ago I upgraded my Win 7 Ultimate PC to Windows 10 Pro using the free upgrade tool that I've used for several other laptops and PC's previously. The upgrade was successful and I spent 15 minutes testing things before I restarted my anti-virus. Once I restarted the AV (Avast Free) the BSOD randomly appeared. I rolled-back the OS to Win 7 and investigated the problem which turned out to be due to the Avast AV so I removed Avast and tried to upgrade to Win 10 again but now the upgrade fails. It downloads updates and then starts installing Windows 10 but gets as far as 2% complete before an error message like "An error has occurred" pops up followed by "Attempting to recover installation" then it rolls back to Win 7. There's no error code that I saw. Once back in Win 7, the PC generally works OK but file permissions are different (Admin user can't access other user's files, web links don't open unless I select IE to open them with, Backup runs but Recoveyr doesn't, etc). In the course of investigating this inability to install Win 10 I've run SFC /scannow which doesn't report any issues, DISM /online /cleanup-image /scanhealth which does report a few errors, component scanner which reports 1 warning, SFCfix and CheckSUR which both report errors that they can't fix and chkdsk which doesn't report any errors. Prior to trying the upgrade the 1st time I checked that the BIOS and the drivers were the latest versions and that Win 7 also had all the available updates applied. Before running the Win 10 install the 2nd time I again disconnected all devices except mouse & keyboard (same as for the 1st time). Given the Win 10 upgrade worked the first time without any problem I 'm thinking the current issues stem from the roll-back.
My system is an i5-760 processor with 16Gb RAM and 1Tb SSD (100Gb free) running Windows 7 Ultimate.
I've attached the output from component scanner, SFCfix, Checksur and the CBS log as a text file version. I have a compressed file for the CBS folder but it's too large to attach.
My system is an i5-760 processor with 16Gb RAM and 1Tb SSD (100Gb free) running Windows 7 Ultimate.
I've attached the output from component scanner, SFCfix, Checksur and the CBS log as a text file version. I have a compressed file for the CBS folder but it's too large to attach.
Attachments
Last edited: