The Device Framework Association Provider Host ( dasHost.exe ) is the process that is responsible for pairing wired and wireless devices like keyboard, mouse, printer, etc. in Windows 11/ 10 / 8.1.
The dasHost.exe process file itself is located at path C: \ Windows \ System32 and is an official file from Microsoft. It is not a virus, but if it is located in a different path, then it is most likely a bogus process and may turn out to be malicious. In addition, if you see several dasHost.exe processes in the task manager and one of them loads CPU, Disk or Memory, then you need to examine the legitimacy of the process and check the system with an antivirus scanner like DrWeb or Zemana.
How to check if dasHost.exe is a virus?
1 . From the Task Manager you need to search the name Device Framework Association Provider Host or dasHost.exe and right-click on it. Select “Open File Location”. If you are thrown along the path C: \ Windows \ System32, then this is not a virus, but a legitimate process. If the dasHost.exe file appears in a different location, then delete it, as it is most likely a virus with a fake name.
2 . Check the system with an antivirus scanner like DrWeb or Zemana, if the process is in a different place, there are several of them in the task manager, or it started to load the system.
Do I need to block dasHost.exe and deny Internet access?
No, blocking, moving and deleting the dasHost.exe file is unnecessary if it is not fake, as you can disrupt the system. In particular, when connecting devices, you may have problems using them.
If you are convinced that the file is not a virus, then you should allow this process to work, since the dasHost.exe process is completely safe and is a file from Microsoft that is used to connect devices to Windows 11/10.