Ugh computer problems

Last night the computer was acting wonky. I had to clear the cache, passwords and everything and it still did not help. I shut it down till this morning and now I have to re set all of the passwords to save. The problem with that is I forgot half of them and have had to go through all of the pages to either request new ones and such. I am now saving them all in a word document in case this ever happens again. This is so irritating. Grrrr.