i live in florida and we get storms that knock out the power. i had windows damaged an had to reformat,now windows will not reconize my external hard drives. plug and play will not reconnize them. i was going to upgrade to windows 10 but wanted to solve this problem first. they were turned off when the storm hit and was off when i reformated. they work on my other computers but not this one. any idea what i can do?all my backups for this computer is on them.