In addition to the many free hard drive testing tools available, several commercial hard drive diagnostic tools are available, for a cost, that should help determine if your hard drive is working properly... or not.
1. SpinRite
SpinRite is one of the most powerful commercial hard drive diagnostic and repair tools available today. It has been available for many years and I have used it personally with much success over my career.
SpinRite is a professional tool and is priced accordingly, currently at $89.00 USD.
2. Hard Drive Mechanic
Hard Drive Mechanic claims to "easily" repair a number of hard drive ailments that can cause all sorts of errors and other problems on a PC.
Hard Drive Mechanic is currently priced at $49.95 USD.
