My setup is as follows:
128GB SSD as C:
1TB 7200RPM HDD as D:
Windows is installed to the C drive, but the /Users folder is on the D drive (installed via Unattended Install)
I just tried to use Windows Update to upgrade from 8 to 8.1 via the Windows Store and it downloaded it, but then returned an error saying the Users folder was on another drive.
Is there anyway I can upgrade to 8.1 without having to reformat and install a clean 8.1?
I have the ISO from MSDN too, but from memory it only has the option to clean install.