Thank you for such fast response.
Comp specifications:
Asus A45V
OS - Windows 10 Home 64-bit
CPU - Intel Core i5 3210M @ 2.50GHz
RAM - 8 GB
Graphics - Intel HD Graphics 4000. 2047MB NVIDIA GeForce GT 630M.
The fact your system took a minute to boot prior to the upgrade suggests something was already causing problems.
I was not very clear maybe. The time I stated is when computer becomes fully functional (as an ending mark I took Skype automatic login on start-up). Or is it still considered as too slow?
How long has the system run since you completed the upgrade?
for about 14 hours.
Check for filesystem corruption with a System File Integrity Check (sfc /scannow)
Done. It says the system found corrupt files and repaired them.
Done. No problems found.
Uninstalled all Samsung drivers and apps.
The computer has now been running for 9 hours. In Event Viewer > Windows Logs > System tab half of events are errors (1,1k total events). Most of errors IDs are 7001, some 10016 and one or two errors are other IDs (16392, 7024, 10010, 22, 7023, etc.)
Rebooting now.
Edit: after reboot it still takes ages to startup and the error still pops up (though that error isn't the main issue I think).
Oh I noticed something else. All the printers that were installed (3 or 4 of them) are all gone from the printers list... That's frustrating, I imagine there might even be more stuff missing that I didn't find yet...
The number of errors in Event Viewer hasn't changed.