Failing to start windows. Could not access c-drive

Try booting in Safe Mode (See: https://support.microsoft.com/en-us/help/12376/windows-10-start-your-pc-in-safe-mode). This should bypass problematic programs and drivers. Alternatively, if you have a Windows 10 CD, you can boot with it and choose the option to repair which will allow you to select restore points.

Keep in mind that if you have a failing hard drive or another significant hardware problem, making software changes, like repairing Windows won't fix it. The part needs to be replaced.

I hope this helps.

The hard drive may be failing, or just the OS or hard drive corrupted. You could try this. Pull the hard drive out, and use a USB Hard Drive Adapter (like this... http://www.newegg.com/Product/Product.aspx?Item=N82E16812196455&cm_re=usb_connector_hard_drive-_-12-196-455-_-Product) to connect the hard drive to a friend's computer, and save all the personal files (documents, pictures, etc.) you can to a folder on the friend's computer or an external hard drive.
Then, you could try to do a Factory Restore on the computer, and if that works, copy your personal files back to your newly restored computer.

Could be the operating system failing, Hard drive corruption, memory not seated correctly or failing.. You can run a memory diagnostic, or run a chkdsk to see if its yours hard drive.

You may have to do a system reformat to reinstall windows on your computer. Put your boot disk into the disk drive on your computer, and restart it. As the computer turns on, press F12 to access the boot menu.

A couple of things here. First, make sure your usb ports are working on your computer. Try plugging the unit into a different usb port. For example, if you usually plug it into the back, try plugging it into the front. If this doesn't work, get a "Powered" usb hub. Your usb ports work on 5volts. Even when they start to fail, they will recognize "non powered" devices like thumb drives or camera cards. Another issue is that the power supply may be failing. Make sure you're using the power supply that came with the drive. If you say it works on your laptop, I'm thinking that your pc's usb port might be failing. A powered hub should resolve this issue. Hope this helps.

If you dont have the option to run:
"Windows XP Recovery Console"
You probably have to install windows on a second PHYSICAL drive, Disconnect the failing one first!
Reconnect the failing drive in slave mode.
1. Start/Run "cmd.exe"
2. execute "chkdsk /F /R /X D:"
3. Shutdown
4. Swap drives.
5. Start system (while praying :) )

Okay this is a internal SATA drive so what you can do is take it out of its failing case and put it into your computer or buy a new enclosure for it. I have a Mybook TB drive and my works great with no problems. But you can take this to WD western digital as its warrentied foe 3 full years!!

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

I'm pretty sure you have a failing hard drive. Try dowlnloading diskeeper 2009 trial & see what it shows for fragmentation of the drive. Run the program & defrag the drive. If that doesn't help you can look for a program called tuff test & check the drive that way. That's the sure fire way to find out. If the drive passes tuff test then back up your important stuff & reformat & re-install the os. Use google to find tuff test. Good luck!

Its already time to back up your important files. Your drive is already failing.

buy windows xp home edition cd and install it