Cleaning your computer from Windows 32 bit Infection (PEI) We recommend that you print these instructions to your online printer, for later reference. You will need IVZ.EXE which makes part of InVircible for DOS, in order to free your computer from PE (portable executable) viruses. Of particular interest is Win32.CIH, a PE virus that destroyed the data, and in many instances the flash BIOS too of over a million computers, on April 26, 1999. InVircible for DOS is available as a self extracting archive from: http://invircible.com/download/invir-en.exe Or as part of your standard InVircible package. Beware! Many PE viruses, like CIH for example, are also known to be fast infectors. They will infect files just on accessing them, like with an antivirus scanner! This is why disinfection of PE viruses should NOT be attempted when running Window! Reboot the computer, press F8 to access the multi boot menu and select the "command prompt only" mode. When at the C:\ > prompt, change to the directory where the IV files were extracted into, normally C:\IV, or C:\TEMP - in case you just opened Invir-en.exe. Issue the command: IVZ C:\ /ALL /R and press Enter. The InVircible generic scanner will check all your local hard drives, locate PE infected files and prompt for your action. By pressing 'Enter', the affected file will be disinfected (Win32.CIH only), or renamed with the non-executable *.EX~ extension name. The renaming of infected files won't let them execute anymore and the further spreading of the virus will stop. When done, IVZ will display a report to screen. It's recommended that you print the report to the online printer with the command: TYPE C:\IVZ.RPT > PRN. The renamed files should be replaced from source rather than attempting to clean them. Note: Programs affected by PE infectors cannot be restored to their exact pre-infected state. The leftovers and botched disinfection might be the source of constant problems with some applications. Moreover, some of the infected files are simply ruined and "disinfecting" them will cause unpredictable and untraceable problems. Such is the case with self-extracting Winzip archives, even after disinfecting them! After having completed the above, restart Windows, go online, connect to the NetZ home page and download InVircible for Windows. Install InVircible for DOS, then for Windows, in this exact order. Now, with the InVircible Interceptor installed and running, you can safely proceed with the replacement of ruined applications. Beware! One of the setup files may still contain the virus that infected your computer in the first place. Yet the IV Interceptor will pop-up now the moment an affected file is accessed, even when just accessing the directory or archive in which it is contained, and prevent infection. Keeping the IV Interceptor active at all times, especially when browsing the Internet and downloading files, will prevent infection by Windows viruses, from both known or new ones.