Question : Delayed write c:\Mft

Windows was unable to save all the data for the file C:\$Mft. The data has been lost. This error may be caused by a failure of your computer hardware or network connection. Please try to save this file elsewhere

Answer : Delayed write c:\Mft

I had the same problem on a USB external hard drive. There are lots of answers for this one. It could be drivers, USB interconnects or OS patches. If you've checked the obvious it may be time for a new drive.

In my case, I check everything and had to buy a new drive. It was only 10 months old.