I know this thread is kinda old but here goes. I have been having the same problems with the GRUB4DOS Red screen booting thing

. I have tried to make a repair disk and use it on my laptop but it never works. Whenever i try to repair boot system it does not work

. Now i want to know if possible, step to step, how i can fix this

. last time i tried it told me i had a missing or corrupt Boot manager or something. Its getting frustrating

. Please help

.