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OneDrive High CPU Usage on Windows 11

Workaround available Windows 10, Windows 11 Updated October 21, 2026

Quick answer

OneDrive uses lots of CPU when it keeps rescanning many files or retries a sync that cannot complete, often after a Windows update. Pause sync to confirm, then reset OneDrive and reduce the folders it syncs.

Most likely fix: Pause sync to confirm OneDrive is the cause.

Symptoms

Task Manager shows OneDrive.exe using high CPU or memory for long periods, fans spin up, File Explorer lags.

Why it happens

  • Very large number of synced files being rechecked
  • A sync that keeps failing and retrying
  • Corrupted OneDrive settings or cache after a Windows update
  • A hung OneDriveSetup.exe process
  • Disk almost full

How to fix it

Try these in order — the most common fix is first.

  1. 1. Pause sync to confirm OneDrive is the cause

    1. Click the OneDrive cloud icon > Help & Settings > Pause syncing > 2 hours
    2. Watch CPU in Task Manager; if it drops, the sync workload is the problem
    3. Do not delete files from the OneDrive folder to fix it - deletions sync to the cloud

  2. 2. Reset OneDrive

    1. Press Win+R
    2. Run: %localappdata%\Microsoft\OneDrive\onedrive.exe /reset
    3. Start OneDrive manually if it does not restart after a few minutes
    4. A reset keeps your files but resyncs everything

  3. 3. Sync fewer folders

    1. Open Help & Settings > Settings > Account > Choose folders
    2. Untick large folders you don't need on this PC
    3. Under Sync and backup > Manage backup, turn off folders you don't want backed up

  4. 4. End a stuck OneDriveSetup.exe

    1. Open Task Manager > Details
    2. If OneDriveSetup.exe is running for a long time, end it
    3. Restart the PC and let OneDrive update normally

  5. 5. Free disk space and update

    1. Free up space on drive C:
    2. Install pending updates in Settings > Windows Update
    3. Reinstall OneDrive from Microsoft's download page if CPU stays high

This guide also covers

  • onedrive high cpu usage
  • onedrive using too much cpu
  • onedrive high memory usage windows 11
  • onedrive.exe high cpu

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