On my 2 Win10 machines, Task Manager shows 1 fontdrvhost. But tasklist and SysInternals' Process Explorer both show 2. Interestingly, Process Explorer shows Font Driver Host\UMFD-0 and Font Driver Host\UMFD-1 as the users, as if Font Driver Host has its own users..?
On my 2 Win11 machines...
Note that Acrobat Reader v11 may be a bit old (2012 according to your Properties screenshot) for Windows 10, which is circa 2015, but has even become incompatible in some ways with its older self in more recent versions.
I have Acrobat Reader v11 on a Windows 7 machine, and simply running...
Huh.. it sure is acting like it's in use even though it doesn't make an appearance in your handles file.
It doesn't seem to be a permissions thing because I experimented with denying myself delete on a test file and I could still delete it, I'm guessing because I'm in the Administrator's group...
Phooey. Heh What about what Vince asked?
Maybe a process has a lock on it. The command line utility "handle" or GUI program "Process Explorer" from Sysinternals can help identify that.
You can try unregistering that extension with "regsvr32 /u drivefsext.dll" from the folder it's in (or specify the whole path), but you may have to at least log out if not restart to make explorer.exe let go of it. Then "regsvr32 drivefsext.dll" to reregister it after you've experimented.
Even...
Yup, the "ext" part of drivefsext.dll means shell extension, and those are loaded by File Explorer no matter what.
Btw, SysInternals' GUI program Process Explorer is good for seeing what DLLs are attached to processes (and LOTS of other stuff), too.
I use "*" (for any file extension) instead of the type "normal". "normal" means a file without any attribute set (I removed the Archive attribute from updater.exe).
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.