How can I restore my backup to my Windows 10 computer? Is the file corrupted, if so, how can I fix that?

@BobGrant45 Thank you for responding. I didn't think to set my computer to "never" for sleep mode because I didn't know I was supposed to, but you mentioned that that shouldn't cause the corruption anyway, so I don't know. I have two regular USB ports on my computer. The computer was and is fully functional(the computer itself was never not working). It's just that one of my USB ports were bent on the inside. the motherboard should be fine. The computer was still in original 1 year warranty. My computer is reading the actual hard drive, just not the back up file of my computer.

@BobGrant45 I thought that too. I don't know why MS couldn't fix it. It went all the way up to level 3. 😩

@sweetiepoo Okay. I think sleep mode generally shouldn't activate while a user selected program is running. (The screen might lock, but that's a bit different.) And if it did go into sleep mode while the backup software was running, I expect you'd see it when you exited sleep mode, even if some corruption happened as a result. So my best guess is that it finished the backup while you were asleep, and then went into sleep mode soon thereafter.

[i]Maybe[/i] something can go wrong if a computer goes to sleep while an external drive is mounted. I kind of doubt that should be an issue. It's also conceivable that Windows 10 forced a restart to install updates partway through, but I think it's supposed to not do that unless it's idle.

Since vhdx files apparently contain logs to help correct errors, I would recommend looking for whatever means MS included to actually correct them. Failing that, maybe try the free demo version of one of the third party repair tools; that might at least indicate the nature of the problem.

Here's another question: how large is the vhdx file? (Since Windows is apparently confused by the file, you might have to infer this by seeing how much space is free on your external storage device.)

@Nibblesnarf It's like 80. something GB, and I have more than enough free space on my external hard drive. What does this mean? and it's funny bc I wasn't even sleep long. It wasn't overnight. It was more like a quick nap since it was taking so long to back up. I don't think MS knows what they are doing.

@sweetiepoo It's good that the file is large. If it were small (like, a few MB), it probably would have meant that your data simply isn't there - perhaps because it gave up on making the backup after encountering early trouble. There probably would have been nothing to do in this case.

But 80 GB is large, which suggests to me that your data is there. The trouble may just be that something went wrong with headers/metadata, so your computer is confused about how to process it.

@SW-User Is it?