so i turned the system off at the mains witch i no now i shouldnt of done but that had stoped it flicking before.
now my problems are
i get the windows did not start successfully
i have the option of booting in safe mode witch ive tried doing but that just loops me back to the same page with the same options.
ive tried last good config and that did the same thing
my friend thinks its a hard drive failure but im not sure ive had the flickering happen before but it never gone like this before.