Need advice on anti-virus programs.

[paulcheung]

Hi all,
I have to goto the shop to help now and then, I have a laptop there. my next door neighbour give us the permission to use their internet, some how this laptop always manage to caught some virus or malwares. I currently use malwarebyte, super antispyware, avast and combofix now and then.
The computer will be disconnect to the internet and run slow sometime. when that happen I use malwarebyte and combofix to scan the laptop. it will be fine for a while and then it happen again.
I get 2 bars from the router most of the time and sometime 3 bars. I am not too sure if is virus or malware cause it drop the connections. when I carry it home I got all 5 bar and it work without any problem. I don't know if the distant at the shop to the router cause the problem. but yesterday I bought another computer there and it only have 1 bar yet it didn't drop the connection none at all for the whole day yet the original laptop keeping drop connection alot of times.
Is there any more scanning program I can try to see if a virus or malware cause this? I plan to use an old harddrive and do a fresh windows 7 install to this laptop to confirm this. I even have an external usb wireless adapter connect to this laptop sometime to rule out adapter problem. it happen same way with the extenal adapter.
Thank you .

 

[mechBgon]

Try the Kaspersky scanning disc. Download this .ISO file and burn it to a disc, then boot the computer from the disc and have it run a scan: http://rescuedisk.kaspersky-labs.com/rescuedisk/updatable/kav_rescue_10.iso

You can increase the scanner to maximum detection like this:

I have some suggestions to prevent viruses here: http://www.mechbgon.com/security If you want the easiest wins first, start with steps 3 through 13. Also make sure your Windows Firewall is treating the wireless connection as "Public," which means it doesn't talk to the other computers that are sharing the router with yours.

In the big picture, it's probably not a virus causing your low connection strength, but it sounds like you still need to strengthen your security.

 

[paulcheung]

Thank you for your reply. I will try your suggestion later after I confirm what is going on. I put back the original harddrive which come with the laptop, it have minimum software installed and haven't use since I installed the new drive. I wanted to know if there is any program or virus indeed cause the drop off. or is just because it is far from the router that it didn't get enough signal.

I will report back after monday. I down load the iso and will burn it to disk and scan the computer later.

Thanks.

 

[paulcheung]

I carry the laptop back to the shop, the old system work without issue for the whole morning, now I am sure something is in the hard drive. so I will try to do the scan tonight see what I can find. or else I have to format the drive and do a fresh install.
Thank you.

 

[paulcheung]

At lunch time the laptop act up with issues. I found out my partner use it went to facebook, Is it possible catch something from facebook links?
Thanks.

 

[tHa ShIzNiT]

At lunch time the laptop act up with issues. I found out my partner use it went to facebook, Is it possible catch something from facebook links?
Thanks.

yes, big time. facebook can be full of malicious links depending on who you are "friends" with. don't click on unknown links...and if your partner is doing that, dont allow them access to your machine.