Trend Micro offers a free online virus scan utility called HouseCall. The utility scans your computer for viruses, worms, Trojans, and spyware. Several scan options are available, including a Full Scan and a Quick Scan, and custom scanning options. After a scan is completed, removal is available to clean your computer of any infections that were detected.
HouseCall works for 32-bit and 64-bit versions of the Windows operating system. It is also available for use on Android smartphones. If your computer has an antivirus and anti-spyware program installed currently, you can still utilize and run HouseCall with no issues.