1.5 years ago my computer started to losing its performance a lot.
At first i thought that a possible virus would be the issue, so i searched everything on my computer to find for a virus, but i didn't, anyway to be sure i formatted it. The problem however persisted.
My computer was lagging, was taking to long to respond and everything seems to be way slower than it used to be. Even my compiles, since i am software engineer, are taking to long, and the applications freezing at start, which is bad.
After it boots, from the moment it logs in my account i have no control of it, for like 45 seconds. Everything freezing... And an interesting fact is that cpu usage is 3-5 percent...
Also one interesting fact is that on chrome some times it just takes to long to load some pages with the mysterious reason of "waiting for cache"
So i thought it should be a ram issue. So i ran memtest for my both 1600 crucial ddr3 8gb sticks, and it came out clean. To be sure i ran the same test on a different rig, and the results were the same.
Weeks later I installed an antiviruus software, VIPRE and even though its not that heavy. I lost the complete control of my computer. At random times, my computer was just stopping to be responsive and even on ctrl alt delete it couldn't appear the screen, and it was giving me an error on a message box. So i had to uninstall the Antivirus.
So after all these i was confident its something about the cpu or the mobo's Northbridge, Until today.
Today i got a special trojan which i removed instantly, it stopped some of my built in security services so i reenabled them and the i noticed i have some updates pending for my computer. So i gone for them. Now before it even started installing them at the time of downloading i got massive lag on my desktop, i ignored it and tried to backup some of my projects on one of my hdds, and just to populate all the files in the folder it took like 5 minutes and started copying them with 1.8MB/s...
So i said again maybe my hdd os faulty, lets try over network. I have to admit over network improved a bit but still while i was transfering the data from my ssd to a network drive with 5MB/s the HDD on a separate network drive was going 80MB/s read / write.
So at this point i realized it could be a faulty ssd after all. But then again, it could also be the Northbridge.
My cpu whatsoever passed every burntest, also all its benchmarks were quite good.
And with 0% load it operates at 23 Celsius while on avg load it operates at 30 celsius. My specs:
Cpu i5 2500k,
Mobo Asus p8z68 deluxe
Ssd SanDisk sdssdp128g
Ram 2x crucial ballistix 1600 ddr3 8gb
Do you have any idea what might be the issue?