Don't know what's wrong with your time stamps. Mine look normal when I run WinDirStat. Sometimes the system does not apply the TimeZone to the results so they may be in GMT and not EDT or whatever you have but that shouldn't make a difference of days.
The Windows-BT is a back up of the previous version of Windows
See: https://www.howtogee...-you-delete-it/
Search for
event viewer
hit Enter
then click on the arrow in front of Applications and Services
then i Microsoft then Windows
Find StorPort and click on the arrow in front. There should be three sub entries. The admin one usually doesn't have any entries but click on the one for health and see if you see any yellow or red marked events.
Repeat for Operational. Copy the text for one of the informational operational entries. Should look like this:
Error summary for Storport Device (Port = 0, Path = 2, Target = 0, Lun = 0) whose Corresponding Class Disk Device Guid is {00000000-0000-0000-0000-000000000000}:
There were 13 total errors seen and 0 timeouts.
The last error seen had opcode 0x0 and completed with SrbStatus 0x4 and ScsiStatus 0x2.
The sense code was (0x2,0x3A,0x1).
The latency was 0 ms.
(Highlight text and then Ctrl + c to copy. Ctrl + v to paste.)