If you lose the CD jewel case for NT, you also lose the CD Key printed on it
unless you’ve written it down somewhere (OK – early senior moment, where did I
write that down?). This is a problem when you need to reinstall.
- The CD Key is digits 6 through 15 of HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows
- Using Windows NT Diagnostics, the CD Key is digits 6 through 15 on the
fourth line of information on the Version tab.