Here's a link to HP's instructions for running the recovery on your computer model.
Performing an HP System Recovery (Windows Vista)
Generally, you can use the Recovery Partition, which is already included on the hard drive, by pressing the F11 key, repeatedly, immediately after restarting the computer.
Hope this helps.
I am helpless in re-formating my HP Pavallion a6157
I got my recovery disk (2) but I can't seem to access the Disk. I tried everything, from F2, F8, F10, F11 nothing will do.
I also can't find my HP PC recovery, where I maybe could start it from.
This whole re-formating cost me nothing then a lot of headache and time
Please, anyone can help me?
This would be sooooo very much appreciated.
Thank you kindly