Found: CTC-6

[Electronic M]

Originally Posted by Tom9589

Likewise about the absence of Windows 9. I have heard of two possibilities of why this version was skipped.

1. One of Microsoft's significant customers considers the number 9 to be unlucky.
2. Some primitive programs query the operating system to see what version is running. There was some concern that Windows 9 could somehow be confused with Windows 95 or Windows 98. Yes, there are still computers out there which still run in Windows 95 and 98.

2. I hear is the main reason. Web pages also query operating system ID and many major ones use the first digit of the Windows number to ID the system....It is easier to change your OS name before market than make the whole internet learn to figure out, and deal with irate customers and web developers in the mean time...