I have a Compaq laptop which runs Vista Home Basic very nicely.
I am now the owner of a full version Vista Ultimate package, and would like to upgrade the laptop to Ultimate. Should be a breeze.
When I insert the DVD it starts the upgrade process OK but when I get to the bit where I chose "upgrade" it is greyed out and a note below says "Upgrade option disabled"
I don't want to do a clean instal as the laptop has lots of software products which came with the machine and I have no instal disks for them.
Is this upgrade disabled normal? Could it be an SP2 problem, ie current system is SP2, while the Ultimate DVD may be SP1 or less??
Could it be a space issue? I have the laptop's disk divided into C and D Drive and the C Drive part is pretty full.