The Trojan.Win32 virus may be manually removed by first unregistering Trojan.Win32 DLL files, deleting said files and finally removing the virus' registry values. Most antivirus programs are capable of removing the virus as well. Although it may be difficult to diagnose, the common symptoms include constant pop-ups, changed default homepages, a slow Internet connection, system crashes and a disabled firewall.
- Unregister the virus' dynamic link library files
First, open the command prompt by clicking Start and selecting Run. Type "cmd," and click Ok to open the command prompt. To unregister a file, type "regsvr32 /u filename.dll" where "filename" is replaced by the specific file you want to unregister. The common filenames of the Trojan.Win32 virus include windivx.dll, stream32a.dll, vipextqtr.dll and ecxwp.dll.
- Delete the virus' DLL files
In order to find the DLL files, click Start, then Search and select "For Files and Folders." Search for the same filenames above in the "All files and folders" search box, and choose "Local Hard Drives" in the tab below. Click Search. Once the files are located, simply delete them the same way you would a regular file.
- Edit the registry key
It is important to first backup the registry, as any modifications may cause irreparable damage to your computer. Microsoft and other companies offer a free automatic registry repair tool. This is often the recommended option, as making any manual changes are extremely dangerous to the computer.