unable to system restore from startup repair

[connorryder]

hey,
i got a hp pavillion running windows 7
i was installing the windows update and pressed restart now, after this the force restart thing came up but i pressed cancel and it didnt like this, after 2 minutes of program errors it restarted and went straight into startup repair. running it on normal mode doesnt work and safe mode is not available. when it runs startip repair it wont fix anything and tells me to restore, i can get to the windows restore part and have restore points but they do not work and an error is shown, x8000xffff if i remember correctly.

anything i can do?

 

[Dinesh]

Switch on your computer and keep pressing F8 on the HP Boot Logo.
Then from the advanced boot options, select Last Known Good Configuration and press Enter.

If this doesn't work, boot into safe mode with command prompt. Then in the command prompt, type rstrui.exe and press Enter. This will launch System Restore. Try restoring your system to an earlier date when it was working fine.

 

[Atripodi]

What if neither option works?