jibbazz

My friend gave me his dated pc to try and clean/speed up. Its running on windows XP. I have used the program ADVANCED UNINSTALLER which I use on my own pc to perform clean up tasks such as removal of temp internet files & windows temp files, startup manager, registry cleaner etc. This is usually a great program. I used the 'registry optimiser' option to speed up the registry/pc. The PC restarted but now wont enter windows. it hangs on a bios type screen (I have no idea with bios etc). Please see attached photo. I have left the pc for ages hoping that it was just extremely slow due to its poor spec and would eventually progress but it doesnt appear (or sound) to be doing anything. Please can you advise what I can do to get windows back on. This doesnt belong to me and i'm panicking !!! I appreciate any help Thanks [ATTACH=CONFIG]925.vB5-legacyid=1808[/ATTACH]