16. Low Disk Space Warning After Update
After updating to Windows 10 1803, a consistent low disk space warning appears. This happens as the upgrade now sets the OEM partition (~450MB) to be mounted on boot. This drive is almost entirely full (~400MB) and triggers a low disk warning.
Unmount OEM partition from drive (powershell as admin).
mountvol {OEM PARTITION DRIVE}: /d
Disable disk space warning checks for partition
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer
NoLowDiskSpaceChecks
DWORD
1
Updated: 2021-02-19 Reference