ESET Knowledgebase

After uninstalling your ESET security product, you may still need to delete the ehdrv driver from your system manually. Deleting this driver completes the uninstall and will prevent complications when installing ESET security products in the future. For more information on how to manually uninstall your ESET security product, refer to this article.

Part 1: Delete ehdrv.sys from your computer

1. Click Start My Computer and navigate to C:\Windows\System32\Drivers
     
    
2. In the file explorer window, right-click ehdrv.sys and select Delete from the context menu. 

   

Figure 1-1 

 
Part 2: Uninstall the ehdrv driver using Device Manager

1. Click Start, right-click My Computer and select Properties.
   
   
   1. XP users, click the Device Manager tab. 
       
   2. Vista / Windows 7 users, click Device Manager under Tasks on the left side of the window.
       
2. In the Device Manager window, click View Show hidden devices. 

   

   Figure 2-1 

3. Click the '+' next to Non-Plug and Play drivers. 

   

   Figure 2-2 

4. Click ehdrv to highlight it and click the Uninstall button.  

   

   Figure 2-3

5. In the Confirm Device Uninstall window, click OK.
   
   

   

   Figure 2-4

Your ESET security product is now completely uninstalled from your system.  

Related:

How do I manually uninstall my ESET security product?

How do I uninstall or reinstall ESET Smart Security/ESET NOD32 Antivirus? (4.x)

How to Download and Install ESET Smart Security (4.x)