Computer woes

My computer has been very untrustworthy for the last few days.  My dear husband has been able to back up my files and bring it back to life but it does continue to shut itself off periodically.  I fear this poor old dinosaur may need to be replaced soon.  If it should finally cease to work altogether I am hoping it won't take too long to replace it and learn a new operating system.  I don't think my EQ5 is supported if I upgrade the operating system but I am hoping it will function for the limited use I make of it. 

As a man thinks in his heart, so is he. [Proverbs 23:7]