Serious Lag on minor tasks like Word, Chrome, Excel, etc.

My system has been extremely sluggish as of late with 10+ seconds of complete stoppage every 2-3 minutes. When it hits, the mouse freezes, Itunes just stutters to a halt, etc. I started running Speccy in the background to see if there was a temp spike or other heat issue and everything is in order. I am running:

Operating System- Windows 7 Home Premium 64-bit SP1

CPU-Intel Core i7 4770K @ 3.50GHz 28 °C Haswell 22nm Technology

RAM- 16.0GB Dual-Channel DDR3 @ 801MHz (10-10-10-27)

Motherboard-ASUSTeK COMPUTER INC. Z87-PRO (SOCKET 1150) 28 °C

Graphics- 1023MB NVIDIA GeForce GTX 560 Ti (EVGA) 43 °C
1023MB NVIDIA GeForce GTX 560 Ti (NVIDIA) 46 °C
SLI Disabled

Hard Drives- 932GB ATA WDC WD10EZEX-00Z SCSI Disk Device (SATA) 31 °C
932GB ATA Hitachi HDT72101 SCSI Disk Device (SATA) 40 °C

My monitors are:
DELL 2005FPW (1680x1050@60Hz)
ASUS VH232H (1920x1080@60Hz)
DELL 2005FPW (1680x1050@60Hz)

Any ideas? I have run HD Tune Pro as well and came up with nothing. I'm stumped. Could this be a hardware problem or a software problem?
6 answers Last reply Best Answer
More about lag minor tasks word chrome excel
  1. Sounds like you might have zero access run tdsskiller then roguekiller and malwarebytes then AdwCleaner you can download them from:
  2. Beside virus or malware or whatsoever, having a driver problem could be the cause too.

    Out of personal experience:
    I had similar problem with a WLAN card several months back.
    The pc was stuttering like crazy.
    It was Lynksis WMP600 under Win7 pro x64.
    I did some search and many other users complained the same problem.
    After I replaced the card with something else, I get no stuttering anymore.
  3. Thank you both for your responses. I run Malwarebytes, CCleaner, and Avast regularly and nothing showed up on those. I will try AdwCleaner.

    Would a driver error pop up randomly? I have been running this set up with no hardware/software changes in weeks. I can check the drivers after doing the above. As for the WLAN card, I am not sure exactly: I found this Qualcomm Atheros AR946x Wireless Network Adapter. Is that the same?
  4. I dunno if it is the same, but I do know that WMP600n has actually Ralink RT2860 inside.
    The card was working fine under XP and Vista but made Win7 stuttering like crazy.
    Yup, the driver problems occurred randomly and quite often, assuming that the hardware is not damaged.
    If you did not have problems before, perhaps the device is partly broken.

    Ok, here is the deal.
    First check that you do not have any malware, virus, adware or any similar problems. then, try to use other ways to get into internet, while disconnecting the WLAN card. I dunno via cable, another WLAN card, etc.
    see if anything is better.
  5. Makes sense, ran through all the malware, AV, and adware scans and everything came back clean. I'm going through and updating drivers right now to make sure everything's up to date and lastly, I have an older WLAN card from an earlier system I can plug in. if worse comes to worse, I'll just cable it over for troubleshooting purposes. Thanks for the help.

    I'll keep you posted.
  6. Best answer
    ah..some info..I know this might sound a bit strange..
    I am now using a WLAN repeater as my WLAN card/module. I connect my pc with a cable to this small repeater.
    I noticed that the networking + internet connection is a lot more stable this way.
    No stutters guaranteed due to WLAN module driver, since I am not installing any extra driver for this WLAN module.
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