How to Fix Msiexec.exe Issue Easily and Thoroughly – Useful Tips

Msiexec.exe is an executable file which belongs to the Windows Installer Component and is used to install new programs that use Windows Installer package files. It is important for the stable and secure running of your PC.

However, some malware camouflages itself as msiexec.exe or a similar name. When msiexec.exe is corrupted by viruses or there is missing of files, your PC will perform abnormal and encounter different issues such as slow performance, personal date exposed, important system files modified, high CPU usage, common used programs inoperative, poor internet connection, even unexpected system crashes. Even worse, the threat seeks the system security leaks to make your system vulnerable for other risky viruses, which can put your system into deep trouble.

It is known to all that msiexec.exe should be in a system directory. If not, then it is a malware and you should remove it from the infected PC timely.

How to fix msiexec.exe efficiently and completely?

STEP ONE: Uninstall msiexec.exe associated program from PC

1. Stop msiexec.exe and its associated running process in Windows Task Manager.

Press CTRL+ALT+DEL or CTRL+SHIFT+ESC or Press the Start button, type "Run" to select the option, type "taskmgr" and press OK > end msiexec.exe and its associated running process.

2. Uninstall msiexec.exe associated program in Control Panel. 

Click Start button> Control Panel > Uninstall a program > find suspicious program and right click on it and then click Uninstall to uninstall the program.

3.  Reset your browsers to clear your internet history records, internet temp files and cookies.

Internet Explorer:

• Open Internet Explorer, click the gear icon > Internet options. 
• Go to the Advanced tab, click the Reset button > Reset Internet Explorer settings > Delete personal settings > click on Reset option. 
• Click Close and OK to save the changes.

Mozilla Firefox:

• Open Mozilla Firefox, go to the Help section > Troubleshooting Information. 
• Select Reset Firefox and click Finish.

Google Chrome:

• Click the Chrome menu button, select Tools > Extensions, find unknown extension and remove them by clicking Recycle bin. 
• Click Settings > Show Advanced settings > Reset browser settings and click Reset.

4. Restart your computer to make changes. 

STEP TWO: Remove msiexec.exe Leftover and Viruses Caused by It Using SpyHunter

SpyHunter is an adaptive spyware detection and removal tool that provides rigorous protection against the latest spyware threats including malware, trojans, rootkits and malicious software.

1) Click the below button to FREE download SpyHunter.

2)  Click "Run" to install SpyHunter and finish the installation step by step.

3) After the installation is complete, open SpyHunter and click "Scan Computer Now!" to start a scan on your computer.

4) When the scan is done, you can see that all the threats are successfully detected. Then click "Fix Threats" button to clean your computer.



Note: SpyHunter's free version is only for malware detection. To remove the malware threats on your PC, you will need to purchase SpyHunter's malware removal tool.

STEP THREE: Optimize Your PC with RegCure Pro

RegCure Pro is an advanced software that can help you with uninstalling programs, managing your startup items and optimizing your computer performance.

1) Click the below button to FREE download RegCure Pro.

2) Double click on its application and click the "Yes" button to install the program step by step.

3) After the installation is complete, open the program and scan your system for unnecessary files and invalid registry entries. That will take some time for the first scanning. Please wait while the program scans your system for performance problems.

4) When the System Scan is done, click "Fix All" button to correct all the security risks and potential causes of your computer slow performance.

Important: msiexec.exe should be kicked out of your PC immediately if it is a threat.

Download SpyHunter to remove any malicious virus.

Download RegCure Pro to fix slow PC.