It may have seem frozen, but there are times when it's best to leave it alone and just allow more time, so be aware the next time.
You may have improperly cut the update process and if it was serious, then it got hosed. I just if you have access use Win7 x64 or x86 version that is the same as your OS to try a repair. This does a basic operational repair of the PC in question and may correct small errors. If you have access to your Win7 install disc, boot it up and try the repair process. If no disc, then your laptop may have a hidden partition that supplies the same option, hit the proper key during boot-up. It maybe F10 or F11, but your manual should explain that or the support website form HP. Alas, there are repair discs out there in WWW land and these do work provided they aren't masquering as malware, so beware.
Google for Win7 repair disc.
BTW, there is a HP forum here as well, try there. Also, HP has its own forum, you can query there.
I was updating the HP advisor last night and the install froze everything. So, I manually turned it off and restarted. Just a black screen when turned back on. Tried to push F8 at start-up this morning still just a black screen.
Any advice would be greatly appreciated.
laptop 2 - 3 years old running windows 7 home premium