My PC is not efficient as before

[Degnekli]

Hello,

I have emachines e725 laptop. 4-5 years ago, i was using this computer and playing games very well(quake live, silkroad, knight online, haxball). then i gave to my family. I have to use this computer now. but it is not efficient as before. (just games)

-there are no problem in videos. playing 1080p videos stable.
***
-I setup windows 8.1, windows 7 professional, windows 7 home premium (x86)
-I setup drivers with driver booster, intel driver update utilty and manual.
-I use maxtor maxblast 5 for bad sectors. (low level format)
-I updated bios.
-I scanned with combofix.
-selected high performance in power options.
-I use new thermal paste, and i cleaned the cooler fan. temperatures are good.
***

But it does not fix the problem. please help.

computer specifications

2048 MB RAM
Pentium(R) Dual-Core CPU T4200 @ 2.00 GHz (2CPUs) ~ 2.0 GHz
796 MB Mobile Intel(R) 4 Series Express Chipset Family

 

[jsmithepa]

Hardware stays static, software tend to get more power hungry. If already re-installed clean OS, the last thing you'd hope is more ram helps minimize swapping.

 

[Degnekli]

Hardware stays static, software tend to get more power hungry. If already re-installed clean OS, the last thing you'd hope is more ram helps minimize swapping.

Thank you for your interest.

 

[Degnekli]

help please