|My CPU usage loves to skip around. When I am doing nothing it travels between 0% and 40%, and then when I do the slightest thing to cause load on the CPU, it goes up between 60% and 100% (more higher than lower). The laptop even spiked up to 50% when playing Minesweeper XD|
I am using a Dell Inspiron N5110 Laptop
Processor: Intel Core i5-2410M @ 2.30GHz
Motherboard: Dell 034W60
RAM: DDR3 6GB @ 665.1 MHz set up in dual channels (one is a Samsung M471B5273DH0-CH9 4096 MBytes, the other is a Samsung M471B5773DH0-CH9 2048 MBytes)
Windows Version: Microsoft Windows 7 (6.1) Home Premium Edition 64-bit Service Pack 1 (Build 7601)
I checked my temperatures and they linger around 50°C to 60°C, never going over 60°C even when on a huge load. (http://prntscr.com/b3fbhi) The laptop never had any issues before this. I have Windows Defender turned off, but Windows Firewall is still enabled. I also have Malwarebytes Anti-Malware Home (PREMIUM).
Malwarebytes scan came up with only a few P.U.P.s, which is common. It didn't contain anything extremely dangerous. I ran a Disk Cleanup and cleaned 128GB worth of stuff. Installed Intel Driver Update Utility and updated the drivers that needed updating. I also ran the Windows Updater and installed all needed and optional updates. I optimized indexing, disabled Media Sharing in Windows Media Player, and even tried using ThrottleStop to test to see if the CPU was being throttled (which is wasn't). I also ran a Disk Defragmentation, and it came up with 9% defragmented, in which I defragmented it. To take it just a bit further, I also took apart the laptop and cleaned the CPU heat sink to make sure there was no way it was because of heat throttling.