The SDK must be installed into the root directory of a drive.
It is recommended to create a clean drive.
One way to do this is use a substituted drive.
In practice make a directory and use the subst command to map this to an unused drive letter.
Create a virtual drive with the letter that corresponds to the path c:\SDK. Use command prompt and type
subst f: c:\SDK . After that the computer treates this virtual (or mapped) drive as a completely separate physical drive.
The subst command must be re-executed every time after rebooting. This can be automated by
Inserting the subst command in the autoexec.bat. (Autoexec.bat must be included into the startup folder in Windows NT).