I have used Norton Internet Security (3 user) licence for a year satisfactorily.
I purchased a new retail version of NIS (3 user) and reinstalled. No problem with 2 laptops but on my PC after restart I now have a black screen and a message "This copy of Windows is not genuine"
I have Windows 7 Pro 64 bit.
I have run MGADiag.exe and it shows my Product Key and hash code are correct. Under "Licensing Data-->" it states "C:\Windows\system32\slmgr.vbs(1333, 5) (null): The data is invalid." The BIOS is valid for OA 2.0 but the SLIC table is missing. There may be other items I have not identified.
I looked on the Microsoft forum for a solution and others reported having this problem - the (non Microsoft) tech blamed Norton - and suggested 2 solutions:
1) Reactivate Windows via the Control Panel wizard. I entered my my Product Key and it stated "Data is invalid". I was unable to procedd further.
2) Uninstall Norton and run NETSH WINSOCK RESET from an elevated command prompt. I did this but it did not resolve the problem. I have reinstalled NIS to ensure I am protected.
Any suggestions would be welcome.
Ian L