Comment by netsharc

They probably had to go to 11 (unlike Spinal Tap, Microsoft's 11 isn't awesome) because they added the TPM requirement. If a computer was Windows 10 compatible but not Windows 10 version 24Hblahblah, it would confuse the average user...

Instead they can throw away their perfectly good computer and buy the confusion as a single package! Relax, the climate can take it!