Most antivirus programs identify MicrosoftHost.exe as malware—e.g. Kaspersky identifies it as HEUR:Trojan.Win32.Miner.gen, and Microsoft identifies it as Trojan:Win32/Tiggre!rfn.
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Description:MicrosoftHost.exe is not essential for Windows and will often cause problems. MicrosoftHost.exe is located in a subfolder of "C:\ProgramData"—mostly C:\ProgramData\WindowsTask\.
Known file sizes on Windows 10/11/7 are 5,453,312 bytes (15% of all occurrences), 5,430,272 bytes and 13 more variants.
The program has no visible window. The software uses ports to connect to or from a LAN or the Internet. The MicrosoftHost.exe file is not a Windows system file.
MicrosoftHost.exe is able to monitor applications and manipulate other programs.
Therefore the technical security rating is 86% dangerous; however you should also read the user reviews.
Important: You should check the MicrosoftHost.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.
Score
User Comments
Hidden crypto currency miner Arseniy
You first need to take ownership of folder and its hidden system folder. Virusscanners can find it but not fully uninstall it. MK SHIELD
Summary: Average user rating of MicrosoftHost.exe:
based on 2 votes with 2 user comments.
2 users think MicrosoftHost.exe is dangerous and recommend removing it.
Best practices for resolving MicrosoftHost issues
The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active MicrosoftHost process on your computer and clearly tells you what it is doing. A good Bantivirus tool detects whether the MicrosoftHost.exe file on your PC might be malware slowing down your system. Such unwanted programs are often not classified as viruses by other antivirus software and therefore go undetected.
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 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.
To restore the original performance and remove unnecessary programs, you can 8reset your PC. Your personal files will remain intact, but any programs you installed will need to be reinstalled.
Score
User Comments
Arseniy
MK SHIELD
Summary: Average user rating of MicrosoftHost.exe: based on 2 votes with 2 user comments. 2 users think MicrosoftHost.exe is dangerous and recommend removing it.