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Windows XP
Run the Registry Editor (REGEDIT.EXE).
Open HKEY_CURRENT_USER\ Software\ Microsoft\ Windows\ CurrentVersion\ Policies\ Explorer.
If it's not there, create a DWORD value and call it NoLowDiskSpaceChecks.
Double-click on NoLowDiskSpaceChecks, and enter the value 1, and press OK.
Just in case....