There's no need to use any external activator for Windows 10. It's activated automatically if you install it over an existing activated Windows 7 or 8.
So go back to factory conditions (with a legal and activated Windows 8.1) and upgrade to Windows 10 the normal way without using any external activator.
I've bought a new pc with overall good config. at about 4 months ago. and it ran very well since that time.but suddenly when i installed win10 and activated it with an activator downloaded by internet (kmspico i guess), it started to behave differently..
it has been slowed To 1/3 rd of before it was.Boot time is enriched 27-38 sec from 17 sec. applications are very slowly opening.Some applications are autometically closing from system tray.
since then i have tried a lot things
I've tried reinstalling my windows.
i've formatted my harddisk and create a new partition.
I've checked it for viruses and malwares again n again with different soft.(like malware bytes, windows defender,)
ive tried Sfc /scannow with no error found
Even i have cleaned dust from my hardware and plug all the cables properly.
my config. are
Intel I3 3220 3.3 gHz
gskill aegis 8gb 1600 mhz (8*1 ram)
Gigabyte Ga-h61M-s motherboard
Nvidia Geforce Gt-610 synergy edition
Windows 8.1 pro
So as i told ive been having this problems since 3 days...before that is was great..So tell me if you have a working solution..Thanks in advance.