How to remove the diagisr virus

Most antivirus programs identify diagisr.dll as malware—such as TrendMicro identifies it as TROJ_STRAT.ID or WORM_STRAT.GEN-3, and Kaspersky identifies it as or

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 diagisr.dll malware

Diagisr.dll file information

The process does not contain any company information.

Description: Diagisr.dll is not essential for Windows and will often cause problems. The diagisr.dll file is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 53,248 bytes (53% of all occurrences) or 49,152 bytes. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. There is no file information. It can change the behavior of other programs or manipulate other programs. The program is not visible. There is no detailed description of this service. It is not a Windows core file. Diagisr.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 83% dangerous.

Recommended: Identify diagisr.dll related errors

Important: You should check the diagisr.dll 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.


User Comments

One user thinks diagisr.dll is dangerous and recommends removing it.

Do you have additional information? Help other users!
What do you know about diagisr.dll:
How would you rate it:
Link for more info:
Your Name:

Best practices for resolving diagisr issues

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

diagisr.dll [all]