>>was takling about tmpfiles - the other ones were not specified ;-)
>>Benefits: less defragmentation on C:, Speed if on SSD
>>(17' has SSD in second bay, thinking about exchanging DVD with SSD in 15')
>>The freedom to just format a play partition and start afresh:
>>makes sense even if housed on same device. Less danger to the OS...
>
>Actually, the reason is opposite in my case. I keep nothing of value on C: simply because once every few years the current version of them Windowses will crash, and I'll lose the registry, sometimes the whole partition. Whenever moving to a new set of disks, I give some space to the OS and to those apps which don't ask where to install and pretty much write that off. That's not my space, that's Redmond tax.

Nowadays I don't try too hard to keep things separate -
I have my xCopy folder I set anywhere, my E: for Exe where all expensive programs asking nicely land
and C: for the rest as I have an install disk where most program land. Only trouble can arise after an OS wipe
if I install such an old version that the update process does not recognize it any more and
I am starnded with an older version than I had before...

Play partitions are assigned a special letter - so I can set those for testing to other disks or
map across a network to gauge the effect of SSD, LAN or other access types.