Pc not booting and the screen stays blank

SOURCE: Qosmio g15 recovery disk error

If the discs are clean and pretty much scratch free, then this is most likely a bad hard drive. If you have another PC or laptop, try burning copies of the recovery cds and then use those. If the problem remains, you will need a new hard drive.

SOURCE: Laptop Screen is Blank

I have the same problem, got nothing but black screen. Josh, I could not find the hole, where is it? thanks, Peter.

SOURCE: Toshiba satellite pro l40 boot up problem

If you run a repair with the recovery disc you won't lose any info. The only time you'll lose the info is if you run a complete reload. Run the system disc until it gets to the point of finding installed operating systems, at this point instead of deleting the partition, press R and it will reinstall the operating system files only leaving other installed files and programs intact. Keep in mind that many times when this happens, it's a hard drive failure. If it is a hard drive failure, then you will have to replace the hard drive and you will lose the info, sorry.

SOURCE: Can't find DVD drive under My Computer and regedit fix doesn't work for it

you may have to check the registry manually and if this will not work, you may have to reinstall windows.

1. click start > run > regedit > ok.
2. In Registry Editor, expand the following registry path:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class

3. Under Class, click {4D36E965-E325-11CE-BFC1-08002BE10318}.

4. Delete Upper and Lower Filters. (If only one is availabel, that's fine).

5. Restart system and check your drive again.

NOTE: Make sure to do this correctly or else, system will not load to windows.

If manually deleting upper and lower filters will not work then you may have to backup your files and reinstall windows.

SOURCE: Recovery

there is noting wrong wit the motherboard all u need is to flash the bios.