New
#51
1 - use diff key for each machine, there is enough keys for this and you reduce the likelyhood of needing to ring microsoft.
2 - technically technet is only for testing and cannot be used for productivity use, realistically microsoft wont care as long as you dont get silly and start doing things like leaking/selling the keys. end of the day this is better for them than you pirating it. I expect you can get away with giving a key to a couple of family members but just be aware it is breaching the t&c.
3 - the keys still work after the subscription expires.
4 - some versions you only get one key, these are typically the VLK versions, I would stick to just using the retail versions.
5 - total keys is actually near 100 I think, you have the normal 4 editions, then repeat for N/E edition. Of course I expect you wont use anywhere near this amount.