An on-demand virus scanner is an antivirus software that you run only when you want to run it. However, it doesn’t necessarily protect you against viruses and other types of malware all the time. So what’s good about on-demand virus scanners?
These types of anti-malware programs are great when you think you might have some kind of virus or other malware but the antivirus software you’re currently using hasn’t caught it. Sometimes, a really nasty malware can prevent your installed antivirus from running properly, in which case an on-demand virus scanner can help solve your problem.
In today’s article, we’re going to feature 5 of the best free on-demand virus scanning tools available. Some of them come in a portable version, which means you don’t need to install them. See what works for you best.
This is one of the most popular free on-demand virus scanners available, as it detects more malicious files than any other virus scanner. You can perform a quick scan, which detects infections in sensitive locations only, like the Windows folder. You can also opt for a full scan, which scans every single directory on your PC. You can ignore files and folders to prevent this program from including them in a scan, enable archive scanning, and optionally scan memory objects, startup items, and registry entries. This program also supports starting scans from the context menu in Windows Explorer.
This free portable on-demand virus scanner from the same developers as the McAfee Antivirus software lets you create a custom scan to search in particular directories, or perform a complete scan that searches all folders, running processes, boot sectors, and registry keys for rootkits and other specific threats. It’s incredibly lightweight (10MB) and doesn’t require you to install anything, allowing you to run the virus scanner from a portable device.
Microsoft Safety Scanner is yet another portable virus scanner from Microsoft that checks for and removes spyware and other similar malicious files. You can run a quick scan to check only critical areas where viruses may be lurking, a full scan to check every file and folder on your computer, or a custom scan to couple a quick scan with a scan of any other folder of your choice.
The size of the installer file is about 100MB, and runs as a portable application. After 10 days, you’ll have to download the setup file again if you want to make another scan. This is to ensure that you have the latest definitions to protect your system from malware.
This free on-demand virus scanner from SuperAntiSpyware.Com detects spyware in the registry and file system, as well as those running in memory. It features some advanced settings, such as scanning only the cookies and including/excluding specific folders from a scan. Some of the more advance features are only available in the paid version.
To download the free edition, you need to choose the Download Free Version Home Users button on the download page.
EMCO Malware Destroyer is a free virus scanner for Windows that provides quick and on-demand virus scanning. The program scans threats like adware, viruses, Trojans, worms, spyware, dialers, and other suspicious programs. Thousands of virus signatures are scanned against the computer in question, and they’re always being updated. This means that EMCO Malware Destroyer is an excellent choice for protecting your PC against old and new threats.
Upon testing the program, a full system scan took less than 30 seconds to complete, making it one of the fastest on-demand virus scanners around.