sortino99

Thanks for the link. If you fill in the form there, how can you do it that they give you a reply or do they never that? Do you perhaps also know of a support email address MS has related to Office? Any chance to get a reply on that? Thanks again.

I asked there also but no replies so not helpful. Back on topic, if I would delete Osfinstaller.exe, what would happen?In the same folder I also see following files starting with "osf". I still have no clue what these are and if I can disable or delete them. Also weird that some start with capital "O" in their name and others with lowercase so those are no typo's of mine:osfbgt.dllOsfInstaller.exeosfInstaller.exe.manifestOsfInstallerBgt.exeOsfInstallerConfig.xmlOsfInstallerConfigOnLogon.xmlOsfTaskengine.dllFolder path: C:\Program Files (x86)\Microsoft Office\root\VFS\ProgramFilesCommonX86\Microsoft Shared\OFFICE16

From time to time OsfInstaller.exe pops up in task manager as a running process, and causes high cpu load. I always know it loads cause than the fans of my Dell XPS 13 become very noisy. It's not a virus I think cause neither McAfee nor HitmanPro detect it as malware. When I stop the proces, after a while it always comes back even the same day. So what exactly is OsfInstaller.exe? The source path of the .exe is C:\Program Files (x86)\Microsoft Office\root\VFS\ProgramFilesCommonX86\Microsoft Shared\OFFICE16 So it seems having something to do with MS Office, which I have, but can I uninstall or delete this OsfInstaller.exe file even when using MS Office like Word etc? What can I do best to stop this from popping up all the time and do I really need this exe? Hope people here can help! Thanks in advance.

Zeuses, could you also make a scan log and send it to support@hitmanpro, give them some info on what happened. Make sure to also ask them for a reply asap and if you get a reply post it here. Could you do that? Would help alot. Thanks.

@Zesuses Is a Windows Update in process (KB4483234)? When you want to restart your PC, can you only do "restart and update" or did you already complete the update and does HitmanPro still show the message when you run a scan with it? Let me know here. Thanks.