Trying to upgrade to Windows 8.1

[kylepont]

I've tried to install Windows 8.1 (coming from Windows 7) from DVD and from USB, and on both it says it cannot update the System Reserved partition. The system reserved partition is 100MB (has 70 free) and no data in it, no hidden folders, so that is all boot information. However, it DID have a letter allocated to it after I installed my SSD. System Reserved is stored on my HDD. And Windows boots perfectly fine without the HDD plugged in, and the HDD only has Ubuntu on it (did have Windows but formatted it when I transferred Windows to the SSD)

Also, I followed these steps:

Press Windows key, type cmd, select Command prompt (Admin) to bring up elevated command prompt
In the command prompt type the following command: sfc/scannow and press enter

And that came back saying no corrupted files. So I'm very confused as to what I've done wrong here,

 

[bjaminnyc]

I could be wrong but think you need to make the system reserved partition at least 350MB for win 8. Shrink the primary partition by a few hundred MBs and expand the reserved.

 

[kylepont]

I was going to do that, but I wasn't sure, because expanding that drive will make it dynamic, and I'm not too keen on losing all of my data if Windows can't boot

 

[kylepont]

I have found a second System Reserved partition, although it is known as "Data". It has 7MB of 100 free. However, even when hidden files are shown, the partition is apparently empty. Any ideas?