Thanks dalchina. That tool says that my SSD's performance and health are both 100%, and the estimated remaining lifetime is "more than 961 days".

Nothing else looks suspicious to me, although I'm not that familiar with this aspect of hard disks. I can't see anything about estimating remaining life, and nothing in your link has anything useful...

I have now used the SanDisk Dashboard to check my SSD and it says that it is healthy. Spare Blocks Remaining is at 100%. The only figure that suggests to me that something may be wrong is the Media...

Hello Brink,

Thanks for the reply.

I tried both, and neither worked. And no, there were no error messages, just the circle of dots going on and on and on... all night in one attempt. I could...

Hello, I somehow managed to corrupt the operating system on my SSD C: drive, and have been unable to restore it. I've gotten to the point that the only option is to reinstall Windows. I have tried...