Welcome kasai,
Thank you for reaching out to the Q&A forum.
I understand that Windows 10 Pro is logging you into a temporary profile rather than your original account. Your original user folder and data still exist under C:\Users, but because the correct profile isn’t loading, you’re unable to access Microsoft Office. Please try the method below using Registry Edit:
Important note: Before trying any fixes, please copy your entire original user folder from C:\Users\YourOriginalUsername to an external drive or another disk.
Disclaimer: Modifying the registry or workgroups is usually geared towards advanced users, administrators, and IT professionals, and it can help fix some problems, however, improper registry modifications can cause serious problems. Therefore, please make sure to follow the steps below strictly. For further protection, make a backup of the registry before modifying it. For more information on how to backup and restore the registry, please refer to: How to back up and restore the registry in Windows - Microsoft Support
Do this:
- Press Win + R > type
regedit - Go to
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList - Look for a folder that ends with
.bak
Rename the folder without .bak
Set State and RefCount to 0
If either value is missing, create a DWORD (32‑bit) value and set it to 0.
- Close Registry Editor > Restart
Hope this helps. Please let me know how it goes!
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