How to remove the ext_driver virus

Most antivirus programs identify ext_driver.exe as malware—for example Symantec identifies it as Downloader or Trojan.ADH, and TrendMicro identifies it as TROJ_GEN.R047C0CJ615 or TROJ_SPNR.30IC12.

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

Click to Run a Free Virus Scan for the ext_driver.exe malware

Ext_driver.exe file information

The ext_driver.exe process does not have any vendor information.

Description: Ext_driver.exe is not essential for Windows and will often cause problems. Ext_driver.exe is located in the C:\Windows folder. Known file sizes on Windows 10/8/7/XP are 150,528 bytes (75% of all occurrences) or 156,672 bytes. 
The program has no file description. It is an unknown file in the Windows folder. The program is not visible. The software is loaded during the Windows boot process (see Registry key: Run). The ext_driver.exe file is not a Windows core file. Ext_driver.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 83% dangerous.

Recommended: Identify ext_driver.exe related errors

Important: You should check the ext_driver.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


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Best practices for resolving ext_driver issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active ext_driver process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the ext_driver.exe on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

ext_driver.exe [all]