why does my computer run slow?

what is making my computer running very slow when i have anti virus

14 Answers

  • 1 decade ago
    Favourite answer

    There are lots of problems which make your pc slow.

    Microsoft Registry Problems = Slow Computer!





    Below can help you speed up your pc:

    I. De-Fragmenting

    1. Right click of C Disk.

    2. Click properties.

    3. Click tools tab.

    4. Click "Defragment now".

    5. Click Defragment.

    II. You can search which process full use you cpu, and end the process.

    Under steps:

    1. Right click on the TaskBar.

    2. Click the Task Manager.

    3. Click the processes tab.

    4. Double click the CPU.

    5. Find if the "System Idle Process" is max.

    6. If not right click and click end process.

    III. Manage your startups. Your excess CPU usage is due to too many programs running in the background. You can cut these to barebones by alter your msconfig. Here is how:

    1. Open your Start menu.

    2. Click Run

    3. In the command screen type "msconfig.exe"

    4. In the "system configuration utility". Click either "service" or "startup" tab

    5. Uncheck all programs that you are no longer using.

    6. Click "OK"

    Use the tool: http://downloadlk.com/themosteffectiveregistryclea...

    Learn more information "why is my computer running so slow": http://downloadlk.com/WhyIsMyComputerSlow.htm

  • Anonymous
    1 decade ago

    If your virus/spyware free, there are a couple things you can do get your computer working faster. If you using your computer for normal stuff and not gaming. You don't always need more RAM you just need to perform a few maintenance task.

    First, if you haven't cleaned your registry in a while. This is necessary. Your registry holds all the information regarding updates, installs, un-installs etc. Each one of those events produces a key. That key needs your PC's resources and free space. So, if you clean your registry, you make more resources available for speed. Do a registry scan if you got more than 20 errors you should clean it.


    2. Clear your Windows cache files, this is your temporary file. It can grow up to a large volume and stop your computer from using RAM properly. In a sense slow it down by preventing it from using free space.Here is how:

    1. Quit Internet Explorer, Firefox, or any other web browser

    2. Click Start, click "Control Panel", and then double-click "Internet Options".

    3. On the General tab, click "Delete Files" under Temporary Internet Files.

    4. In the Delete Files dialog box, click to select the "Delete all offline content" check box , and then click OK.

    5. Click OK.

    3. Manage your startups. Your excess CPU usage is due to too many programs running in the background. You can cut these to barebones by alter your msconfig. Here is how:

    1. Open your Start menu.

    2. Click Run

    3. In the command screen type "msconfig.exe"

    4. In the "system configuration utility",click either "service" or "startup" tab

    5. Uncheck all programs that your are no longer using.

    6. Click "OK"

  • 1 decade ago

    Check what processes are running on your computer using Task Manager. Press Ctrl + Alt + Delete and click on the Processes tab.

    Look down the CPU and Mem Usage columns for any process where the digits are high. Do a Google search on the process name to find out what it does.

    Incidentally, anti-virus software uses up a lot of resources

  • jizmo
    Lv 5
    1 decade ago

    A computer runs fast due a combination of factors. It needs to be protected from viruses and other malware. It should not have too many programs loading at startup, have enough RAM. Besides this, its is very important to keep the HDD clean and fast. You have to run diskcleanup regularly to keep the drive clean.

    Have you defragged in a while? Get rid of unwanted programs, run diskcleanup and defrag using a good program like Diskeeper. If your drive is severely fragmented or has less than 15% free space, just set it to automatic mode, it will defrag in the background without any conflict.


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  • 1 decade ago

    Ensure you don't have 2 anti virus scanners active at once, with 2 applications accessing & scanning the hard drive it will slow to a crawl. If you have an old (IDE) hard drive or CPU then this can cause slow down too while scanning.

    Also, ram.

  • Anonymous
    6 years ago

    Fix computer run slow

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  • 1 decade ago

    You can use a registry cleaner to clean up your computer and then make your computer faster,Why?the reason is that there may be some registry errors and remnant,corrupt files and temp files in your computer to cause "computer slow".

    Every time you install and uninstall software on your computer and surfing online you create junk in the computer registry.over time, the registry can grow to enormous proportions, especially if the various programs you've installed do not do a good job of deleting and/or updating it's Registry entries.You need to scan and clean your computer with registry cleaner to make it fast.Good Registry Cleaner will improve your computer and Internet performance dramatically!

    There are some comparison and review of TOP 5 registry cleaners.


    You can download and scan your computer for free.

  • 1 decade ago

    Try to defrag the hard drive with Smart Defrag (it's free, just google it) and cleaning the registry with CCleaner (also free). If that doesn't help, you may need to reformat the hard drive and reinstall the OS. Just make sure to back up any important data.

  • Anonymous
    6 years ago

    If you are facing problem in computer regarding pc slow ..

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  • Anonymous
    6 years ago


    You can get your free copy of Ccleaner here http://j.mp/UrAC7G It's by far the best program for cleaning PC

    It's a must have program.


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