Save open work and back up important files. Note any recent driver or hardware changes. If Windows cannot start, use the startup guide first.
Work through these checks
0 of 4 complete01Run Disk Cleanup utility in admin mode
Run Disk Cleanup utility in admin mode.
Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.
02Delete Windows.old update folder manually
Delete Windows.old update folder manually.
Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.
03Move large personal files to secondary drive
Move large personal files to secondary drive.
Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.
04Run system storage sense optimizer in Settings
Run system storage sense optimizer in Settings.
Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.
Possible causes
- Low physical storage capacity on system drive C:
- Excessive update backup files (Windows.old directory)
- Temporary folder clutter and download cache files
- Too small system reserve partition allocated
Useful Windows tools
These commands open Windows tools. Review any action inside the tool before applying changes.
cleanmgr.exeWas this helpful?
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