I recently tried to install SP1 on a system with Windows Vista Ultimate (OEM Hack) 🙂 !! DELL OEM Distribution.
I read many stories about successful installations. I tried it myself to see what happens.
1. Downloaded the SP1 from the official Microsoft’s site.
2. Disconnected the network cable (just in case).
3. Run the update.
there where 2 phases of install. First Of all it began with creating a restore point. (I thought that if the system was locked could I restore my system on a hacked state ???)
In the 1st phase of update took about 15mins on a (Core 2 6400 / 2GBRAM ) – Divided in 3 stages.
The second phase took about 10 min, displaying progress in windows welcome screen.
4. Connected the network cable back in place.
5. After a week the system still shows Activated.
I ll soon post any tweaks for better perfomance and overriding the stupid confirmation dialog.