Hey everyone.

I am running Windows 10 on a Lenovo T520 computer.

My problems began when I was having issues with my computer being slow after the most recent Windows update. I decided to rollback my build. I did so, and then upon logging in, my taskbar would freeze and crash my entire computer.

Then, I fixed it somehow by working with the chkdsk feature. But, when it finally started to work again, my audio would be completely off, as well as my internet connection. I attempted to fix it, but to no avail.

Now, my computer is in a never-ending loop. I'll reboot my computer and it'll get to the loading screen only to tell me that there is an "Unmountable_Boot_Error". From there, it'll automatically restart and it just leads to a black screen. Mouse is responsive but nothing else. Just now, after a good 15-20 minutes of a black screen, it went to the normal boot screen that gives advanced options. It is running slowly, but so far I am cautiously optimistic.

I am on a spare computer running Windows 7 Pro. I was able to use the Windows Media Creation tool to create an ISO file on a DVD. However, I am unsure how to make it work.

Someone please let me know how to fix this! Thanks.