Hi TRM,
Welcome to Technet forum.
In addition above suggestions. Please backup files which is in Desktop, Downloads, Document and Picture.
We could degrade to Windows 8.1 within 30 days after we upgrade to Windows 10. If you could not find “Windows.old” folder on OS partition, Windows 10 will not be downgrade to Windows 8.1.
Best Regard,
Jim Xu
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact tnmff@microsoft.com.
Jim Xu
TechNet Community Support
