After a not so trouble-free upgrade experience my new PC is up and running (smoothly atm - fingers crossed). SE also runs smoothly and I did notice a small but noticeable performance increase.
One thing I am puzzled about is the
usable memory reported by the OS:
Shouldn't a 64bit OS be able to use all of the installed memory?
Things that I've tried so far:
-I have updated the Bios to latest version.
-Similarly I have updated the OS and drivers to latest version(s) where applicable.
-I have tried various ''googled'' suggestions ranging from no success (OS tweaks) to disastrous results (changed BIOS settings resulted in not being able to boot to OS even after resetting to previous values (a condition called: continuous re-boot loop) - had to turn off power for a few minutes, clearing CMOS and hard resetting BIOS to default values by short circuiting a small button at the back of the motherboard - I ended up with tranquilizers that night...)
Lessons learned so far: DO NEVER CHANGE BIOS SETTINGS if you don't know / aren't sure what you are doing.
The h*ll with this 300-400MB. It is not a big deal after all. It was just my insatiable curiosity that made me suffer..
Anyway I am pretty happy with my rig. The only two apps I am using: SE and Elite: Dangerous both run even more fluidly now. I hope I will not need to upgrade for a veery long time (unless there is a hardware failure - fingers crossed & God please no - I am bankrupt now).