Operating system not found

cruzazul2588

Prominent
Aug 14, 2017
1
0
510
My Acer aspire 3680 continues to say operating system not found I have a windows upgrade system in there and a window 7 drive how do I get it to work
 

190221

Reputable
Aug 20, 2015
527
1
5,160
cmos battery dead? i had the same problem in an old compaq and the cmos battery needed a replacement.
go into bios and make sure the hard drive is detected.
you're saying you're trying to upgrade to 7?