Defender Offline Scan not starting

kirbster 1 120 Reputation points
2026-04-14T17:35:46.82+00:00

With the latest update Windows 11 25H2 26200.8246 Release Preview Channel, I went thru the process to run an offline scan. Defender goes thru all the motions to run a scan, however the system won't reboot for it to do it's scan.

Is anyone else having this problem?offline scan

Windows Insider program | Windows Insider preview | Security, privacy, and accounts

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  1. Johnny55 5,155 Reputation points Volunteer Moderator
    2026-04-14T18:42:04.4366667+00:00

    Hello Kirbster,

    I tried on Release Preview and another device on Release, and on both devices, as soon as I pressed Scan, both devices rebooted immediately.

    Suggest filing a FBH report recording this incident. Are you dual-booting by any chance.

    Scan

    Regards,

    Johnny

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  2. CrazyKats 19,245 Reputation points Volunteer Moderator
    2026-04-14T18:34:10.59+00:00

    User's image

    Main page shows 0 Answers. Just because you

    reject it, doesn't take it out of the thread.

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