I got this message when i tried to install SP3 on a Windows XP SP2 running on a Mac (boot camp): “There is not enough disk space on C:\WINDOWS\$NtServicePackUninstall$ to install Service Pack 3”
Solved the problem by adding a new string value named BootDir with the value C:\ under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\. Restarted and installed SP3.
thank you! you save me hours! I think I could never solve this by my own…
cheers
Ever since SP3 came out, it kept giving me a not enough disk space error, no matter how much space I freed up. Finally was able to get it to work — thanks!