This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Windows 11 24H2 26100.863 Release Preview
Does anyone know why Defender Offline Scan won't work?
This problem has persisted over the span of Windows 11 and is still present here on the 24H2 release.
You go thru all the steps to perform an offline scan, however for some reason Defender won't "lock in" to begin the scan. You don't get the confirmation that your system will restart, in turn the scan doesn't start.
Any ideas out there?
AND NO I SHOULD NOT HAVE TO DO A CLEAN BOOT TO START THIS. This process should be able to run from a normal windows setting.
Maybe this is a problem that Microsoft can't, won't doesn't care about fixing?
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Yes I posted it to FBH before posting on here, now in FBH my earlier post is nowhere to be found! I should have copied the link.
The offline scan problem is sporadic.
A time or two ago when it happened I went in to record it and then it started to shutdown my system to perform the scan. (this was about 10-15 minutes after I first tried to scan)
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(198.4, 2%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPO%3C/text%3E%3C/svg%3E)
>This process should be able to run from a normal windows setting.
On my device running build 26100.863 it restart and run offline scan without issues.
Here is installed vereons on that device:
>Maybe this is a problem that Microsoft can't, won't doesn't care about fixing?
You should file report using Feedback Hub with record option to let MS team know about this issue.
Once you have make that FBH repoer post link hare so that if any other users with same issue can update and add comment to that feedback report.