Why does my computer become slow after connecting to the Internet?

Erlis D. March 14, 2012
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Hello there! Lately I’ve been having some boring problems with my computer. When I connect to the Internet the computer gets slow. This only happens sometimes, not always. I thought it was caused by Windows updates, so I turned them off, but nothing worked. Also, I thought that this was an antivirus problem, so I uninstalled my previous one (BitDefender Total Security 2012) and installed a new one (Eset Smart Security 5). But nothing changed, the problem still exists.

When I’m using my browser (I use Mozilla Firefox 10.0.2), sometimes it gets blocked, and sometimes after that all the windows get blocked. I have tried using another browser, but the problem still exists. I would really be grateful if someone could help me with this. Thank you!

My computer info:

Windows 7 32-bit
Intel Core 2 Duo T9300 (2.5 GHz)
Up to 1791MB NVIDIA GeForce 9500 GS

  1. why my computer is getting slow when i attach to internet?
    September 10, 2012 at 11:14 pm

    please help me solved my problem...

    • Erlis D.
      September 11, 2012 at 6:02 pm

      See the comments above.. Maybe they help you!
      If not, please describe better your problem!

  2. rajiv Gurung
    August 13, 2012 at 4:24 am

    when i have connect reliance internet and i open other files my computer response very slow. computer info: windows xp professional version 2002 .amd sempron(tm) 145 processor 2.79ghz.2.00gb ram

    • Erlis D.
      August 13, 2012 at 9:23 am

      OK. I understand..
      Try to read this posts:

      What I think: Maybe there are some processes that use your internet connection, are active... For example, a program has a automated process to do the updates.. I would recommend to check all your installed programs, and see if you can disable their automatic updates! Also make sure to disable your windows automatic updates, and see if the computer works any better.. (In fact, this would be the first step to do, and try. Since automatic updates can slow computer, if they keep scanning for new updates all the time...)
      If it doesn't get better with automatic updates turned off, check the programs updates then...
      To disable some services, take this steps:
      1. Start
      2. Run
      3. type: msconfig
      4. Services

      At this tab, disable those who have to be with updates.. (just un-tick any)
      But ATTENTION: You must NOT disable some system services, since it may cause problems with your windows...

      If none of this works, I would consider formatting the computer..

  3. rajiv Gurung
    August 11, 2012 at 9:15 am

    Hello there! Lately I’ve been having some boring problems with my computer. When I connect to the Internet the computer gets slow.

    • Erlis D.
      August 12, 2012 at 8:34 pm

      Hello rajiv! See the other comments below! Maybe they help you; like they helped me! :)
      But, as an update, I will tell you something else...
      If you are using Win 7, try to update to SP1 version, and then retry to connect!
      If the problem happens again, delete, and recreate the internet connection profile!
      And if that happens again, try to fully close from task manager firefox, and navigate for sometime with chrome, to see if there is any difference....
      Hope it helps!

      • rajiv Gurung
        August 13, 2012 at 4:28 am

        i have a windows xp version 2002

  4. Erlis D.
    March 16, 2012 at 6:37 pm

    Thank you guys, I scanned, cleaned, defragmented my PC, turned off my windows defender and now my PC runs with super performance! :)
    Also I made some changes in my antivirus! Really thank you! :D

    • Tina
      March 17, 2012 at 7:01 am

      Glad that this worked for your, Erlis and thanks for the update! I marked the question resolved for you.

  5. Anonymous
    March 14, 2012 at 8:28 am

    Make sure Windows Firewall, Windows Defender or any other AV or firewall is disabled 

    perhaps the security level is set to high and this cause problems, you have to look for other levels
    Deselect Automatic startup file check | System Startup file check
    How do I temporarily disable the startup scan? (4.x)  

    Why does my automatic system startup scan take an unusually long time to complete?  

    Slow or no Internet/network/printer connection: Solution checklist

    you can also ask eset not to scan photo and video?

  6. Susendeep Dutta
    March 14, 2012 at 6:59 am

    Have you tried cleaning your PC by running CCleaner(cleans history of PC,browsers and registry) and Defraggler( Defragments files in HDD).

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