Discount Hard Drives

My husband and I are thinking of what to do with Jadyn's computer. It is infected with malware that caused the system to be so slow. I am not in favor of him buying our kid a new computer instead have the CPU or hard drive be fixed or wait a little longer until we can have the money to buy me a new computer and this old laptop I have will be given to her. I am looking at Discount Hard Drives and I see the prices are not so bad, I know depending on the memory size the price will vary also plus we need to think of the labor it costs if ever we will decide to just replace the hard drive.