Windows 10: Dual boot 10 and 7 - 10 tried to upgrade 7

I think thats what happened. I booted into win10, the update (or is it it upgrade) assistant said there was an update to install. It then downloaded something for about 45 minutes... rebooted... and gave me the big black screen, with the clock on it. When I reset and came back to the boot screen, there was another listing call Windows 10 start, in addition to my WIndows 7 and windows 10 selections.

I have the OS's on different SSD's. Did the windows 10 see the windows 7 disk and try to upgrade it to windows 10?

:)

 

How do I restore dual boot capability after Windows 10 clean install removed it

My computer was dual-boot with Windows 7 boot partitions on two separate drives. After upgrading to Windows 10, the dual boot provision worked fine. However after a clean install of Windows 10, dual-boot capability is no longer available. The boot partition
for the remaining Windows 7 syBistem is intact. Only the dual boot option is gone.

I tried the changing the default operating system under System Properties/Advanced/Startup and Recovery, but the only choice is Windows 10. Windows 7 isn't a option. I'm guessing that the clean Windows 10 install wiped out access to the dual-boot menu.

Thanks.

Bill

 

Dual boot system consisting of Windows 7 & Windows 10

Is it possible / permissible to alter an existing dual boot system of 2 windows 7 O.S. to upgrade one of the windows 7 to Windows 10 and leave the other Windows 7 as is? The result would be a dual boot system of Windows 7 & 10.

 

Are you on build 10240 of Windows 10? (run winver to find out). If you are build 10240, then what you were seeing is the upgrade to the past November update which is build 10586. Your Windows 7 will not upgrade to Windows 10 when you are booted into Windows 10. Your Windows 7 will upgrade to Windows 10 only when you are booted into Windows 7.

 

It would be nice if Microsoft would describe the process of 'updating' to a new version. Also, it would be nice if it would have retained all my security settings, which it didn't. It was practically like starting over, but with my software already loaded.

Thanks for your help, navyLCDR

 

Yep, that pretty much describes the upgrade from 10240 to 10586.