Audry has an old HP desktop running Windows 7, but after a power outage, her computer won't turn on. She even had a surge protector. Leo says that even the best surge protectors won't protect against huge power surges. But it may also be that when the power came back on, it jumped across the surge protector in a rush. It could also be that the power supply shorted out. Leo recommends replacing it. A surge protector also has a fuse and if the fuse popped, then nothing will work until she pops them in. Leo suspects the power supply just blew out.