i did not go for the free Win 7 to Win 10 upgrade last year as I was afraid of Win 8 features in Win 10.

But after getting a new Dell with Win 10, I like the new Win 10!

Found out that MS allows another round of free upgrade to Win 10 (for lower end version, home etc).

Upgraded last night on my laptop,

730 pm downloaded Win 10  3GB+
800 pm started installing
numerous auto shutdown and restart
1100 pm blank screen, belum habis, went to bed

next morning
800 am blank screen
decided to press the power button, restarted in Win 10! Luckily!

The second half of the upgrade is not that good with blank screen. It should be more user friendly with messages on the screen, especially the last step to manually restart the computer.

Other than the above issues, the upgrade went well, all other programs are intact. 

Thanks MicroSoft!