i cannot completely uninstall Webroot from my computer.

Hello
 
For Windows Vista and Windows 7:
1. Open the Start menu by clicking the Start icon.   
2. Type the following into the Start Search bar, exactly as it appears below.
      "C:Program FilesWebrootWRSA.exe" -uninstall
3. Press the Enter key on your keyboard.      
4. When prompted to uninstall, click Yes.
 
For Windows 8:

1. Move your cursor to the bottom right of the screen to open the Charm Bar menu.  
2. Click Search, then type the following into the Start Search bar, exactly as it appears below. Note: This path is for the default location. If you installed the program elsewhere, be sure to modify the path accordingly. "C:Program FilesWebrootWRSA.exe" –uninstall  
3. Press the Enter key on your keyboard.  
4. When prompted to uninstall, click Yes.

If neither of the methods above is successful, please repeat the steps in Windows Safe Mode.  We recommend you print these instructions, then click here for information on starting your computer in Safe Mode.