> should I migrate first to a lesser version of windows 10 (1607 or 1703) to minimize incompatibility problems and then move on
to 1903?
Should you? Yes as those are Win 10 versions past their end of life. That really has nothing to with when you do them though. You should
do them all. The order doesn't matter and doesn't change whether systems are compatible or not.
> Is
there any verification for the drivers? how sccm handles driver version during in-place upgrade?
Yes, drivers are checked by the upgrade process. See https://www.imab.dk/windows-as-a-service-precaching-drivers-before-in-place-upgrades-with-configmgr-task-sequences/
for info on drivers during an upgrade task sequence.
> how long can the upgrade take?
That depends on many external factors like disk speed, CPU speed, RAM, network speed, what else you are doing in the task sequence, etc. It can go as quick as 45 minutes or take as long as 5-6
hours.
> is the data protected at 100?
User data and software are not touched during the upgrade. They are not protected either though, they are just in-place as is.
> Can KASPERSKY block the upgrade?
Lots of things can block the upgrade. As Kaylan noted, I strongly recommend disabling third-party AV during the upgrade process.
> in
case of network failure is the rolback automatic?
No, as that won't impact the upgrade itself which is a local process and not dependent on the network.
Jason | https://home.configmgrftw.com | @jasonsandys
