How to remove the l1rezerv virus

Most antivirus programs identify l1rezerv.exe as malware—for example Microsoft identifies it as Trojan:Win32/Sisron, and Symantec identifies it as Trojan.FakeAV.

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 l1rezerv.exe malware

L1rezerv.exe file information

Windows Task Manager with l1rezerv
L1rezerv.exe process in Windows Task Manager

The process l1rezerv.exe has no company information.

Description: L1rezerv.exe is not essential for Windows and will often cause problems. L1rezerv.exe is located in the C:\Windows folder. The file size on Windows 10/8/7/XP is 232,960 bytes. 
There is no information about the author of the file. The file is an unknown file in the Windows folder. The program has no visible window. The program starts when Windows starts (see Registry key: MACHINE\Run). The l1rezerv.exe file is not a Windows core file. L1rezerv.exe is able to connect to the Internet, record keyboard and mouse inputs and monitor applications. Therefore the technical security rating is 83% dangerous.

Recommended: Identify l1rezerv.exe related errors

Important: You should check the l1rezerv.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 l1rezerv issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active l1rezerv process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the l1rezerv.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

l1rezerv.exe [all]