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Windows Defender Offline Scan Not Working: 6 Ways to Fix It
Force start Microsoft Defender Offline Scanner in just a few steps
4 min. read
Updated onAugust 21, 2024
updated onAugust 21, 2024
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Many users reported that the Windows Defender offline scan is not working. it could be due to a Windows bug,corrupt system files, conflicts with third-party apps, ormissing administrative permissions.
Here’s how to fix these issues:
How can I fix Windows Defender scanning problems?
Check out this quick video tutorial. For more details and advanced fixes, read the steps below.
1. Perform the scan via PowerShell
Oftentimes, while the Offline Scan wouldn’t start from Windows Defender, executing the dedicated command in PowerShell would get it to run.
2. Run the Windows Update troubleshooter
A few users reported that it was a problem with Windows Update that led to the Windows Defender Offline Scan not working, and running the dedicated troubleshooter got things working perfectly.
3. Use a third-party antivirus
If you still can’t fix the problem with Windows Defender, you might want to consider switching to a third-party antivirus.
A good alternative is ESET HOME Security Essential. It offers browsing protection, online banking security, anti ransomware protection.
Further, it stops spyware and malware at bay, thanks to its real-time protection.
For added security, you can separately installESET SysInspectorfor offline diagnostics. It works without an internet connection, helping you troubleshoot issues such as malware, outdated drivers, and suspicious network connections.
ESET HOME Security Essential
4. Run the DISM and SFC scan
The DISM (Deployment Image Servicing and Management) tool and SFC (System File Checker) scan are two effective built-in options to fix corrupt system files, which might be the reason Windows Defender Offline Scan is not working.
5. Perform an in-place upgrade
An in-place upgrade is the best option when the Windows Defender Offline Scan is not working or even for other intricate issues where you can’t identify the underlying cause.
The best part is you don’t lose any files or apps, though we do recommend youcreate a backupbeforehand in case things go wrong.
6. Create a new user account
That’s it! If the previous solutions didn’t work, creating a new local user account should do the trick.
If you still find Windows Defender Offline Scan not working,reinstall Windows 10as a last resort. We also have a guide on how to fixWindows Defender Scans folder access deniedmessage, so don’t miss it.
Before you leave, do check thebest antivirus for Windows 10for all-around protection against malware or online threats.
Tell us which fix worked for you in the comments section below.
Ivan Jenic
Windows Hardware Expert
Passionate about all elements related to Windows and combined with his innate curiosity, Ivan has delved deep into understanding this operating system, with a specialization in drivers and driver troubleshooting.
When he’s not tackling diverse driver-related problems, Ivan enjoys watching good movies and spending time hiking with his family and friends.
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Ivan Jenic
Windows Hardware Expert
Ivan has delved deep into understanding the Windows OS, with a specialization in drivers and driver troubleshooting.
