Sorry If this thread is on the wrong forum but please can you help.
When ever I turn on my computer it comes up with this:
Windows Boot Manager
A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source.
If you have a Windows installation disc, insert the disc and restart your computer. Click "Repair your computer," and then choose a recovery tool.
Otherwise, to start windows so you can investigate further, press the ENTER key to display the boot menu, press F8 for Advanced Boot Options, and select last known good. If you understand why the digital signature cannot be verified and want to start Windows without this file, temporarily disable driver signature enforcement.
Info: Windows cannot verify the digital signature for this file.
I have tried to use my install disc but when i try and boot from that is says:
Press any key to boot from cd/dvd...
So I press a key and it goes straight back to the Boot manager message.
I have also tryed to get into the advanced boot options by pressing F8 but is comes up with the different drives i want to boot from. I dont really want to disable the driver enforcement because f the safety and i can't anyway. Is there anything that can help?
I am using a custom built pc (by my self) and it has worked for more than a month.
I am using windows 7 professional x64.
Thank you in advanced,