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WIn7 fails to upgrade to Win10? 'SafeOS phase - BOOT operation' error.
Hey all - a friend of mine who is an older gentleman, but quite an established and capable photographer asked me to replace the power supply in his desktop PC after a recent power surge killed it.
Power supply is replaced and all is working well again so he asked me to do an upgrade on it from Win7 to Win10. I've done this many times before and haven't had many issues but this time during the upgrade, it fails, reverts back to Win7 and gives me the 'upgrade failed in SAFE_OS phase yada yada BOOT operation' error. I'm trying the upgrade from a Win10 USB stick created using the Media Creation Tool.
I know this can often be caused by drivers and antivirus software, so I temporarily uninstalled the version of AVAST Antivirus Premium he had installed and tried the upgrade again...same error. I don't have any external devices plugged in except for my USB keyboard, USB mouse, monitor, the Media Creation Tool flash drive, and a USB WiFi dongle.
I tried the upgrade again having run the Avast Clear tool to get rid of ANYTHING Avast left behind, and also removed the USB WiFI dongle as well...same error.
I HAVE had this error in the past and solved it with help from here, but can't remember how I went about doing so. I seem to recall user @zbook is knowledgeable about this sort of thing and my fixing it in the past involved log files (but I don't recall where the logs are located...?)
Any help is appreciated as I'd rather not do a full reinstall of Win10 as he has a LOT of high-end photography related software that would need to be put back, a lot of which he no longer has the disks for...
Thanks so much! :)
OH....I did remember to download and run the Microsoft SetupDiag tol and the log from that said it didn't find any errors that matched with known ones...?
The computer is a custom build with Win7 Home Premium 64-bit, an ASUS mobo with 2 x 320GB SATA desktop hard drives running in RAID 0 (as far as I can tell?) with an Intel Core i7 930 CPU @ 2.8Ghz, Radeon HD7800 Series video card and 12GB of RAM.
Thanks! :)