tonylong wrote in post #14524830
Hey All!
I have a friend who is seeing some issues in her Win 7 laptop -- for one thing she apparently can't get the Start button to function properly.
She has Norton AV, she says she renewed it. She lives out-of-town so I can't sit down and troubleshoot things. I suggested she get something to scan the computer for worms/virus/malware, but I don't have a name.
So, does anyone have a suggetion for a good free scanner/detector that she could try?
In addition to the installed scanners(av, malware, and firewall which should be locked down) she should also use a non hard drive based scanner. Some nasties can hide from hard drive installed items. So, cd/dvd/usb thumb drives are another handy tool. No single tool will catch every nasty every time. A single tool will usually catch most nasties, most of the time. Firewall, drives, email, and internet/chat applications should all be always scanned.

You do need to keep any av, spyware, worms, malware checkers current.
"Current" means daily or weekly updates, not monthly or whenever.
While you can update the definitions/dictionaries, the computer must be on to fetch them and then use them to scan the system.
(Seems obvious, but a good friend hadn't realized the computer had to be turned on to scan and that updates should be fetched before the scan. :rolleyes
Yes, the system may drastically slow down during the scans.

You might consider:
The Trinity Rescue Kit CD
System Rescue CD
Ultimate Boot CD (tools, av, malware, etc can also create a USB drive following link on page)
Sleuthkit & Autopsy Browser projects- Former is the tools, latter is graphical user interface for tools
ultimate-boot-cd-on-a-usb-stick
Shields Up! security testing site to check for leaking firewalls.
Spouse likes this one, because even I can run the various tests and report issues back it finds. Even has explanations of the issues and how to fix the settings to resolve them.
If she travels or uses hotels/free hotspots, and so on, definitely get that firewall fully functional. Spouse has heard tales of "better" hotels with no security on their hotspots. Spouse prefers to change all passwords upon arriving home in case a password or the laptop was compromised on the business trip. Conferences are another favorite target for black hats.
Many of those CD kits for fixing and rescue are linux-based, but they can scan windows-based systems without a linux geek present. 
Team viewer, go to meeting, or some similar programs are used by spouse to troubleshoot parents' computers from a day away. Faster internet access improves the usability.