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Windows 8 high performance pc very slow and laggy

Hey guys, I am running Windows 8 on my pc and it's really slow and it lags alot. The time that it takes for programs to open, it freezes a lot and programs stop responding alot. Also, I just recently did a full restore on my pc, about a week ago. My PC specs are:
MB
OS: Windows 8 64-Bit
CPU: Intel I7-3820 @ 3.60GHz
RAM: 8GB (4x2GB)
GPU: Nvidia GeForce GTX 660 1.5GB
Anyone know why I am getting this massive lag and really slow performance? I appreciate any answers. Thanks
4 answers Last reply Best Answer
More about windows high performance slow laggy
  1. Could be a background process that accidentally got onto your pc. Check task manager processes. Look for anything taking a lot of ram. If it doesn't look familiar, google it. If it's bad, end the process.
  2. I have no programs that are using more than 100MB ram. Also, would defragmenting my hard drive make a difference to the performance of my pc?
  3. Yes. It should be scheduled to do that weekly by default though. Might wanna double check.
  4. Best answer
    may be a virus since viruses eats up a lot of your processing power and memory.

    check whether any malicious program is running in the background.

    also check the memory utilisation. if it doesn't exceed 25% (15 min after booting), then ensure that there is no mobile phones or magnets near you system. the em waves from mobiles can cause lagging and serious damages to your system.
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