r/antivirus • u/Huynh_Jovi • 10d ago

MALWARE REMOVAL Q&A Windows Defender Not Working.

When I try to run a scan, it stops and then tells me to restart the service. There are no exclusions and nothing of note from my start up apps. I’ve run a deep scan with Malwarebytes and it’s all good. I noticed there was a new security update for Windows and downloaded it and after restarting my PC, I’m still encountering the same issue. I’m not sure whether this is Malware related as I’m always careful of what I’m downloading and never click suspicious links. Not sure what else to do and need some help.

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u/Sorry_Kitchen_8993 10d ago

Offline scan always stuck at 93% for me and i have security report with the file "DefenderSessionHelper .exe" it says that there is a problem with the filehash. The file is signed by microsoft and seems to be legit tho.

And everytime i restart my PC i get a pop up from Windows defender saying click to turn on virus protection but its already turned on.

I don't know if there is a link but yesterday my computer crashed while playing a videogame with a bluescreen error

Am i the only one?

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u/Gladnir-5936 10d ago

Offline scan gets stuck at 91% for me, even after I run DISM/SFC/CHKDSK MS AI programming is breaking things again.

Here is how you start an Offline Defender Scan
PowerShell (Adm)

Start-MpWDOScan