# \[EPCR2860NQEW-ES / QCS6490/ Windows11\] System Recovery Support Request After INACCESSIBLE\_BOOT\_DEVICE Error

**URL:** <https://forum.aim-linux.advantech.com/t/epcr2860nqew-es-qcs6490-windows11-system-recovery-support-request-after-inaccessible-boot-device-error/1137>\
**Category:** Technical Supports\
**Created:** [April 22, 2025, 7:46am UTC](https://forum.aim-linux.advantech.com/t/epcr2860nqew-es-qcs6490-windows11-system-recovery-support-request-after-inaccessible-boot-device-error/1137 "2025-04-22T07:46:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![yuta\_tanaka](https://avatars.discourse-cdn.com/v4/letter/y/a698b9/32.png) [@yuta\_tanaka](https://forum.aim-linux.advantech.com/u/yuta_tanaka)\
**Post date:** [April 22, 2025, 7:46am UTC](https://forum.aim-linux.advantech.com/t/epcr2860nqew-es-qcs6490-windows11-system-recovery-support-request-after-inaccessible-boot-device-error/1137/1 "2025-04-22T07:46:33Z")

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We are using the EPCR2860NQEW-ES (ROM2860, based on QCS6490), and as part of our standard procedure, we attempted to back up the internal disk using the third-party tool AOMEI Backupper Standard, downloaded from the official website.

Link : [Windows向けのバックアップフリーソフト | AOMEI Backupper Standard](https://www.aomei.jp/backup-software/ab-standard.html)

However, after installing the software and rebooting the device, we encountered a blue screen error: INACCESSIBLE\_BOOT\_DEVICE, and the system has since failed to boot, even after multiple power cycles.

 ![error](https://us1.discourse-cdn.com/flex016/uploads/aim_linux/original/2X/f/ffb64a5ceb674d8e7921c70e13be39c6a12a7ef7.jpeg)

We would greatly appreciate your guidance on how to recover the system from this error.

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**Author:** ![phill.liu](https://avatars.discourse-cdn.com/v4/letter/p/a8b319/32.png) [@phill.liu](https://forum.aim-linux.advantech.com/u/phill.liu)\
**Post date:** [May 14, 2025, 2:02am UTC](https://forum.aim-linux.advantech.com/t/epcr2860nqew-es-qcs6490-windows11-system-recovery-support-request-after-inaccessible-boot-device-error/1137/2 "2025-05-14T02:02:52Z")

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Becasue,we can not release WOA directly in this forum , so please send an email to me , my email is Phill.liu@advantech.com.tw. thanks.