spapakons, thanks for this produktive input. Will think about it.
Never thought about option #1, but seems like an easy way to go.

Option #2 is the way i thought about myself, but i'm still not...

cognus, some workstations are currently on Win7, some on Win8.1. But dont think this matters at the end.

But i'll replace all the other hardware, not the hard drive. You have an idea how win10 will react to this?
is it just trying to re-activate? (new hardware should already be saved @MS at this point)

hm not sure if i miss something since i did my last win10 setup :) (free upgrade + following clean install). this was what i've done the last time, worked fine for me back then. but maybe i'm...

if you want a reliable option, you have to backup. If it works, great, if not use your backup.

Hi guys,
Currently we run 5 workstations on win7/8 on old hardware. In the near future, we want to migrate to windows 10 - and use the free upgrade offer from ms.

Problem is, we'll get new...