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Windows 10 Upgrade Installation via DVD without booting into Windows 7
My Dad's laptop running Windows 7 crashed the other day, and after running Startup Repair, it found that compbatt.sys was corrupt. I tried copying over a good version from my pc & recovery partition but that only resulted in a blue screen.
Today, I attempted to do an upgrade installation of Windows 10 in order to preserve his files,etc.
We have a backup, but he's not 100% sure on it's content.
I was able to boot off of the Win 10 DVD and select Upgrade Installation, but then it stops, and a message pops up (paraphrasing here) that I need to boot into Windows 7 for it to proceed.
As I am unable to boot into Windows 7 due to the corrupt system file, I'm asking for a way to force Windows 10 to proceed with the Upgrade Installation WITHOUT having to boot into Windows 7.
I've prepared my Dad for the fact that we may need to do a clean install (7 or 10), and suggested we'd have to pull the HDD from his laptop and use my HDD cradle to scavenge for any files, but his laptop would take full disassembly (remove keyboard/etc) to get to the HDD.
Thanks for any help in allowing us to proceed with the Win 10 Upgrade Installation without having to boot into Win 7 which is corrupt. Googling hasn't given me any clue thus far.
Looking forward to people smarter than me helping me to a path forward without a loss of data and not having to take apart the laptop.