Windows 8 and 8.1 Forums


Slow web when downloading large files after clean install

  1. #1


    Posts : 216
    Win 8.1 Pro x64

    Slow web when downloading large files after clean install


    Did a clean install of Win 8.1 Pro x64 on a desktop i7-2660K machine a week ago. Since then, there's been a problem that didn't exist before the clean install, namely web page loading is very slow while downloading large files, a few hundred mb to a few gb. Pause the downloads and pages load normally. Before the install, the page file was set to system managed size. System drive is fast Plextor SSD and RAM is 16gb. I've now tried 32gb max and still slowness. Not sure where to turn on this. This is a relatively fast cable system (Charter), with line to the computer through an Linksys E1200 router (for wireless laptop). Any ideas? One thing I hadn't done yet is reinstall the router on the desktop, but I just did that and it makes no difference. Is that necessary? Thanks,
    Last edited by highstream; 13 Jan 2015 at 19:03.

      My System SpecsSystem Spec

  2. #2


    Posts : 446
    Win 8 64-bit


    I'm interested in any responses to this as well, because in my opinion Microsoft screwed it up.

    I'm not sure when they changed it, but I noticed they changed this quite a while back. The change they made seems to give full bandwidth to the first thing you start downloading, but as you've discovered it's a nightmare like this because it means you can't do anything internet related until the download has finished. In the case of a large download, that's frustratingly limiting.

    How it was before, Windows seemed to balance the load so you could have something downloading in the background, but still carry on with other things on the internet. How it is now, the second thing you try to access on the internet will usually result in a timed out error and if doesn't it's so incredibly slow that it's unusable.

    It's not just with file downloads either, if you've got a heavy loading webpage, you can't just leave it loading that page and go view another webpage, because the first webpage sucks all the bandwidth to itself . Also, if you click a link on a heavy loading webpage, it won't do anything due to the webpage sucking all the bandwidth. So you either have to wait for the whole page to load first, or you have to open the link in a new tab, then close the heavy loading webpage tab.

    I don't know what they were thinking to be honest because it's pretty bad as it is now. Maybe on a super-fast Microsoft LAN they don't notice how bad it is, but in the real world the changes they made are terrible.
      My System SpecsSystem Spec

  3. #3


    Posts : 216
    Win 8.1 Pro x64


    After setting the page file max to 32 gb, I rebooted and it was the same. But after that I installed about nine Windows updates, again rebooting. Then I ran a test, really aimed at checking if it was a browser issue, but it turned out all browsers, including my main one, Opera 12.17, are ran fine with two downloads going. Makes me wonder if one or more of those MS updates was aimed at this. My downloads are done via Internet Download Manager, so to cover that I've just excluded both its and Opera's executables from Comdo's a-v and firewall, and MBAM's hatchet. Maybe a place to look at for your web page as well?
      My System SpecsSystem Spec

  4. #4


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    There are ways to turn off QOS on Windows 8. You can check to see if your provider is throttling your connection by running Shaper Probe. ShaperProbe After you run it in a command window, post the results.

    With using Comodo & MBam, along with Opera, yes that could be the issue. There are just too many factors, without you doing a lot more diagnosis and testing to pin point the problem.
      My System SpecsSystem Spec

  5. #5


    Posts : 216
    Win 8.1 Pro x64


    If there still is a problem...


    DiffProbe release. January 2012. Build 1008.
    Shaper Detection Module.

    Connected to server 38.102.0.85.

    Estimating capacity:
    Upstream: 4287 Kbps.
    Downstream: 90622 Kbps.

    The measurement will take upto 3.0 minutes. Please wait.

    Checking for traffic shapers:

    Upstream: No shaper detected.
    Median received rate: 4218 Kbps.

    Downstream: Burst size: 5590-6525 KB;
    Shaping rate: 31658 Kbps.
      My System SpecsSystem Spec

  6. #6


    there's been a problem that didn't exist before the clean install, namely web page loading is very slow while downloading large files, a few hundred mb to a few gb. Pause the downloads and pages load normally.

    someone tell me i am crazy??!! read this one more time.

    so you are saying when you download a large file your internet goes slow? wow that doesn't sound logical at all right? haha

    man, when you use your bandwidth, your web pages and anything else will go slow!

    so what is the problem?

    run this it's free (NON-flash) based speed tester of internet
    SpeedOf.Me, HTML5 Speed Test | Non Flash/Java Broadband Speed Test


    now the most funny part about this is are you going to try to surf webpages while this is testing your full speed? and then will you complain that it's going slow when you try to surf the web while it's running a full speed test with your internet??

    am i crazy?
      My System SpecsSystem Spec

  7. #7


    Posts : 216
    Win 8.1 Pro x64


    tereongully, If you don't want to believe what I wrote about before and after, then you should pass on this thread. Thank you.
      My System SpecsSystem Spec

  8. #8


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    Do a large download and run Shaperprobe at the same time. Then paste the results. If there is a large differential in speeds, then I would be looking at maybe something along the lines of QOS at play. Either in Windows or on the Gateway/Router.
      My System SpecsSystem Spec

  9. #9


    highstream, i am just using logic man.. that is what you said.. it's all there in black in white..

    look are you still having this issue? did you run the speedtest link i posted? did the results seem normal? to what you paid for internet?

    also clear me up then man? i would like to help you..

    is the problem you can't use the internet when downloading large files??


    *edit- if you want to see the real "logic" i talk about, send me the link to download this apparently "large" file and i will download and try to surf the same exact pages you try to go to that are "slow"..

    so send me the link to download whatever file.. and then tell me web pages that are "slow" for you and i will download the file and go to those web pages.. that's called logic.

    also tell me the web browser i should be using that you use.. that's called testing actually..
      My System SpecsSystem Spec

  10. #10


    Posts : 216
    Win 8.1 Pro x64


    Quote Originally Posted by broe23 View Post
    Do a large download and run Shaperprobe at the same time. Then paste the results. If there is a large differential in speeds, then I would be looking at maybe something along the lines of QOS at play. Either in Windows or on the Gateway/Router.
    Running two large downloads via IDM, downloading at 1.5 mb/s and 2.5 mb/s. Light delay loading new pages, nothing close to what led to this thread.


    Shaper Detection Module.

    Connected to server 4.71.251.175.

    Estimating capacity:
    Upstream: 2715 Kbps.
    Downstream: 10275 Kbps.

    The measurement will take upto 2.5 minutes. Please wait.

    Checking for traffic shapers:

    Upstream: No shaper detected.
    Median received rate: 2576 Kbps.

    Downstream: No shaper detected.
    Median received rate: 9744 Kbps.
      My System SpecsSystem Spec

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Slow web when downloading large files after clean install
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