Here’s how to install antivirus and other protection software on your computer, if you don’t want it to get infected by malware.

The steps are described in detail below.

If you have any questions or concerns, let us know in the comments.


Download the software.

Windows 10 for PC should be installed on your desktop.

The installer should tell you the version of Windows it’s installing on.

You can find it in the Start menu or Search menu.


Download an antimalware tool.

We recommend the Windows Defender Antimalware for Mac, which will scan your computer for any malware and download its associated files.

Windows Defender also comes preinstalled on Macs, and is a free download from the Mac App Store.


Start the installer.

If it’s not installed yet, it’s time to start it.

Open a command prompt window (Windows, Linux, or Mac) and run the following commands: cd c:windowssystem32applauncher.exe search for c:appswindows Defender Antilock.exe and open it.

If the results are displayed, you should see a message stating the installation is complete.

If they aren’t, click OK.

If all else fails, you can try the following command: c:applauncherswindowssourceswindows.exe c:sources c:downloads c:installer.exe (Optional) If that doesn’t work, you may need to restart the computer.


Start Antimalisk.

Open Antimalisks, choose the antivirus tool you want to install, and click the Start button.

A dialog box will appear with instructions.


Click the “Install Now” button.

The installation will take a while.

At the end of the installation, you’ll be asked if you want the antiviruses file to remain or delete it.

Click “Delete” to delete it, or click “Save” to save it.

Note: If the antivirs file is saved to the c:Windowssystem, the uninstaller program will be run on the new file.

If that’s not the case, the antivirc software is only installed on the original Windows installation, not on the modified copy of Windows that was being used for the uninstall.


Close Antimaliservers.

Click on “Close” to close Antimalirus.


Open your browser.

You should see an error message if the browser is unable to load the new antivirus file.

Open another tab or window and try again.

The new antivirals file should load.

If everything’s OK, click “OK” to confirm.

If there are any issues with the installation process, check the “Help” section of this guide to find out more about the problem.

If antivirus software doesn’t automatically install, there are a few ways to go about doing it.

First, you might need to uninstall it manually.

You’ll need to run the “Windows Update” utility, which is located in the Control Panel.

The utility downloads and installs Windows updates, and also downloads new updates when necessary.

2-Step Installer 3.

Download a different antivirus.

You might be able to get free antivirus from a third-party, like or Avira.

The tool will scan the computer for malware and provide instructions on how to remove them.

You may also want to use the free tool.

4-Step Removeer 5.

Start another Antimalist.

Some antivirus solutions might offer a “reboot option” that will automatically wipe your system and install new antiviris later.

You could also try the “Wipe cache” or “Delete files” methods to remove unwanted software, but that’s a bit more complicated.

6-Step Auto-rebooter 7.

Run the following utility to remove all files and registry keys that were installed.

Open the Command Prompt window (or open a new Command Prompt tab and navigate to it) and type: wmic remove msi.msi 7.

Delete the following files: msi_windows.sys, msi, msis.sys If you want them back, delete the following registry keys: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesMsiWindowsWindowsUpdateUpdateService.exe HKEYSOFTWAREMicrosoftWindows NTCurrentVersionWindows UpdateServiceMicrosoftUpdateService (Optional, but recommended) If you don