Is that a laptop or desktop?
How exactly are you able to tell it's about to fail
I have no recovery discs.But I figured even if I didn't have them, this may be an option http://www.justanswer.com/computer/6cfj4-replaced-hard-drive-toshiba-satellite-l655-laptop.html
Customer Question I replaced the hard drive in my toshiba satellite l655 laptop. I used my restore disk, but when i got to disk #3 i got an error message saying.....ERROR:F3-F200-0002and to press ok to turn off computer..... what does all that mean and what do i do now?Expert's Answer tekbabe : Hello are you there tekbabe : If your system files have installed to a point to recover them try the following....let me know the outcome with detail pleaseThanks, TEKBABE System Recovery from the Hard Disk Drive Do not turn off or restart your system during the process. 1. Push in the power button for around 5 to 10 seconds to turn off your system. 2. At the same time press and keep holding down the zero key 3. push the power button in one time to switch on your system. 4. Once the screen appears, release 0 key. If you see a message to select the 32bit or 64bit operating system- just click Next 5. A warning screen will appear; click Yes to continue 6. Select Recovery of Factory Default Software from the menu and then 7. Choose Recover to out-of-box state option from certain options, select Next 8. Then Next to start recovery
...or just back up your important files to external media, order a new hard drive, replace it once it's dead and reinstall Windows.There's entire subsections on most websites for Laptop hard drives so as long as you pick a SATA one, you're fine.