Which Antivirus does not freeze PC?

Hi peeps,

I need to install an antivirus on my PC to protect my PC from internet threats etc.

I have a quite slow PC. Below is my PC's current system:
OS -> Microsoft Windows XP SP3
CPU -> Intel Celeron 2.53 GHz
Memory(RAM) -> 512MB

I have installed the 2 best antivirus, Bitdefender and Kaspersky, acccording to this review: http://anti-virus-software-review.toptenreviews.com/

However, both freezes my PC and I can never use my PC normally.

Can somebody please tell me which antivirus I can use which can do more or less the same job as Bitdefender and Kaspersky, but which does not freeze my PC.

Please note that I plan to upgrade my Memory(RAM) from 512MB to 2GB.

Thanks for reading

Jean Luc
8 answers Last reply
More about antivirus freeze
  1. Captain Picard,

    You could try AVG Free but I think there's a fighting chance that any current antivirus is going to choke on a celeron and 512MB of RAM.


    Lt Cdr Data
  2. Try Microsoft Security Essentials, it's pretty light-weight and should run on that system.
  3. Hi guys. Thanks for your replies :-)

    fannatick, do you think Microsoft Security Essentials is effective in protecting my PC?
  4. It's not the best anti-virus out but for your needs, it should work fine. As with everything, just be careful what sites you visit and what you click.
  5. Hi

    first of all your computer is slow, not the antivirus that are causing problems.
    512 mg just doesn't cut it in 2013, even if you uninstall the antivirus, it will still be slow.

    Also you have a celeron witch are a slow one core cpu, totally outdated and normal to be slow.

    Please note that I plan to upgrade my Memory(RAM) from 512MB to 2GB.

    You need at least 2 gb of memory if you want better performance, good thing your upgrading.

    I have installed the 2 best antivirus, Bitdefender and Kaspersky,

    second, NEVER EVER install 2 antivirus: they will conflict and slow down your computer even more.

    Now about antivirus,
    Performance wise (sntivirus not slowing down computer)
    I recommend Microsoft Security Essentials (+1 fannatick, attal, ) But also Bitdefender and Kaspersky are pretty good antivirus (paid)

    But norton and avg will make your pc slow down as hell (-1 danieladdison, J_E_D_70)
    They are good antivirus, don't get me wrong but takes too much resources.
  6. Avira Antivirus is the best for your Hardware config. Quite light and no annoyances. I'd recommend to use it with Comodo Firewall suite.

    Both are FREE.
  7. I would seriously consider upgrading your RAM, you can get a 1 or 2 GB stick for a fairly decent price these days.

    That being said, I agree with the above suggestions of Avira or Microsoft Security Essentials.

    Kaspersky Internet Security is a great AV, but will chock your performance on a Celeron processor and low RAM.
  8. You Could Try Norton by using this antivirus you also got full support from gateway support team of Norton antivirus
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