My computer keeps coming across so many damn problems, it's starting to get annoying. >.<;

This time, my monitor started turning on and off repeatably, until it somehow fixed itself so that it's working properly now. Then my computer keeps booting up and asking me to select the safe modes, last configuration or normal startup.

Whenever I select any of these it goes to the Windows Logo booting screen, and just stalls.

Now I can be pretty handy with computers and I keep mine up to date and clean/organised as possible. So I can't really put my finger on why it keeps doing this.

I could format, but I really don't want to be doing that. I have a lot of stuff I haven't backed up yet. =\