Windows 7 64bit is slow, can't find problem


  1. FofR
    Posts : 3
    Windows 7 Professional 64bit
       New #1

    Windows 7 64bit is slow, can't find problem


    I'm running Windows 7 Professional 64-bit. It was running fast a year ago. About half a year ago it slowed down dramatically during boot and the follow 10 minutes. I can't figure out why. I've done the following to no avail:
    1) ran antivirus (Security Essentials) and antimalware (Malwarebytes) programs (no problems found)
    2) cleaned up unused files and defragmented HDD (no noticeable change)
    3) did a clean boot (still had the issue)
    4) formatted HDD and reinstalled Windows... twice (issue still present from beginning both times)
    5) replaced HDD, SATA cables, and RAM (issue still present)
    6) utilized all the troubleshooter programs built in Windows (no problems found)
    7) ran a CPU scan (passed)
    8) Reset BIOS (no change)
    9) Updated BIOS directly from ASRock (no change)
    10) Ran Disk Check (no change)

    Interestingly, I have another HDD in which I put the Windows 10 Tech Preview on. It runs perfectly. That same HDD was previously in my system with Windows 7 on it and the problems were still present.

    Other info:
    Processor: Intel Core i7 3770
    Motherboard: ASRock Z75 Pro3
    RAM: 4 x 4GB DDR3 1600MHz (default set at 799.9MHz)
    Graphics: GeForce GTX 660 Ti

    Any help to get my computer running fast again is greatly appreciated.
    Last edited by FofR; 17 Jan 2015 at 14:11. Reason: Update
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  3. PlatypusKnight
    Posts : 115
    Dual Boot Win 8.1 x64; Win 7 SP1 x64
       New #2

    Hi FofR

    Welcome to 7 forums.
    You did a pretty good job troubleshooting on your own.
    Have you checked your RAM? . . .Ahh yes I just noticed that in your post.

    Does the problem persist in Safe mode?
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  4. FofR
    Posts : 3
    Windows 7 Professional 64bit
    Thread Starter
       New #3

    Yes it does.
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  6. PlatypusKnight
    Posts : 115
    Dual Boot Win 8.1 x64; Win 7 SP1 x64
       New #4

    Would you be averse to a clean win 7 install?


    I'm sorry I forgot that you said in the OP that you've already done that.

    I had an idea when I first started thinking about your problem.

    What do you use for a firewall?
    Last edited by PlatypusKnight; 26 Jan 2015 at 16:28. Reason: My stupidity
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  7. FofR
    Posts : 3
    Windows 7 Professional 64bit
    Thread Starter
       New #5

    I use Windows Firewall.
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  8. Xmas
    Posts : 7
    Windows 7 64 bit
       New #6

    Id try control panel/system & security/performance information and Tools/advanced tools/

    and look at performance and resource monitor data

    but check your virtual memiory size is set to 'windows recommended' value first

    I spend a lot of time moving files off C drive to backup media, and defragiing, large/fast ready boost chip but still a slug, but it would 'stop' otherwise...

    It is not unknown that things get slower after a windows update occurs
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