Forum Discussion

pbot's avatar
pbot
Copper Contributor
Jul 01, 2025

OneDrive personal logs filling up hard drive

I received a low disc space alert on my pc, and to my surprise, had 0% remaining. After some exploring, I found a folder: Users/UserName/AppData/Local/Microsoft/OneDrive/Logs/Personal

Which was about 30GB and contained a few hundred thousand files called SyncEngine followed by dates and numeric codes. 

I deleted the folder contents. After about a day its back up to 8GB and climbing.

I deselected any folders for OneDrive backup. 

I'm assuming there's something wrong and this folder isn't supposed to be outrageously large, but I can't get it to stop filling up my hard drive.

Any insights would be greatly welcomed!

 

 

 

files
storage
Sync

1 Reply

  • NikolinoDE's avatar
    NikolinoDE
    Platinum Contributor
    Jul 02, 2025

    This issue usually stems from:

    1. Sync Errors or Loops – OneDrive constantly trying and failing to sync (even if nothing's visibly syncing)
    2. Debug Logging Stuck On – OneDrive gets into a high-verbosity logging mode unintentionally
    3. Permissions or corrupted configuration – leading to sync engine failing to complete operations and logging excessively

     

    Fixes you can try…

    Reset OneDrive Completely

    Press Win + R → paste: %localappdata%\Microsoft\OneDrive\OneDrive.exe /reset  à Enter

     

    Disable Personal OneDrive if not used

     

    Install the Latest OneDrive Version