Pc won't start after installing latest version of ubuntu . I press the button to start the pc and then i see the bios start but after that i get a black screen and nothing is happening. i can't even re install windows 7 or choose between windows 7 and linux . Please help i don't want to pay for fixing this . I don't remember the hardware and since i can't access windows 7 i can't tell you. the only thing that i know is that it is an hp compaq 500bmt
If you have a usb stick to hand you could turn it into a Ubuntu Live USB, boot into it and reinstall grub, this may help. Once in the live USB install "Boot Repair" and reinstall grub using this tutorial.
After this restart your PC and at least this should get you back into Windows if not Ubuntu as well. Hope this helps.
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