Not enough info to help, other than if the computer came with system recovery media it would be best to wipe it clean and install fresh Windows install.
Im sorry that the answer I posted here is very vague, but with no information about the computer, I can only state a general response to your situation.
On the computer there should be a make such as HP, Dell, Toshiba, Samsung, etc
Then there should be a label on it with model #
This info would be helpful to see what you have. Additionally I have seen systems with bad motherboards show these characters on a black screen before windows boots with a corrupt BIOS etc.
Right now I could only guess what the problem is because not enough info.