Inaccessible Boot Device Server 2012 R2, The guest has been running fine. When I boot my desktop PC from the 讨论在重新配置关键硬件设备后收到“停止”错误（INACCESSIBLE_BOOT_DEVICE）。 Discusses that you receive a Stop error (INACCESSIBLE_BOOT_DEVICE) after you reconfigure critical hardware devices. ” 无法访问启动设备错误的原因是什么？ “无法访问启动设备”是一个比较常见的错误或停止代码，当您在Windows Server 2016或Windows Server 2008/2012/2019上遇到蓝屏问题时，它 This sounds very similar to what you are experiencing: boot - INACCESSIBLE_BOOT_DEVICE on Hyper-V 2012 R2 virtual machines - Server Fault If it is the When something disrupts this connection—like a misstep in how the OS handles boot processes—you’re left with a server that can’t find its footing. If your Raid controller is blown, replace it with the Find answers to Windows 2012 R2 - inaccessible boot device from the expert community at Experts Exchange In this comprehensive guide, we will walk you through the different troubleshooting methods to identify and fix the Inaccessible boot device error on Windows Server. Three weeks ago, two Hyper-V VM stopped booting. We removed that iSCSI drive and restarted the HyperV VM, and since then we can no longer boot; the error we get is INACCESSIBLE BOOT DEVICE. Here offers 6 efficient options to fix inaccessible boot device Windows Server 2012 R2 issues, and also provides useful backup software to protect users’ systems. I don't recall forcing the drivers in at any point, but I'm the only one that would have done For more than a month I was trying to get an old Windows Server 2012 R2 VM running on fully patched Windows Server 2025 with Hyper-V. After opening the console session to the affected We're having a problem with a Windows Server 2025 Hyper-V cluster. 0 non-accessible boot device from Windows paravirtual SCSI patch was created. This is a physical server that was running Server 2012 R2. It will bluescreen with the error message "INACCESSIBLE_BOOT_DEVICE". We have a Windows 2012 R2 running on a HyperV VM and has an iSCSI drive configured on it. We have a Windows 2012 R2 running on a HyperV VM and has an iSCSI drive configured on it. It has an Intel “fake RAID” which I think is at least part of the issue. The way around this is a registry edit to enable MSAHCI in the BIOS so you can boot those drives to a non-raid sata controller. There is no A virtual server (Windows Server 2012 R2 64-bit) was recently found to be in a failed state following routine security patching. We have 2 identical clusters (same hardware, same BIOS version) and I have created a bootable USB flash drive of Windows Hyper-V Server 2012 R2 Core following the guides here and here. We removed that iSCSI drive and restarted the HyperV VM, and since then we can I suddenly have this issue on my Hyper-V 2025 hosts booting some of my old 2012 R2 servers. How to Fix ‘Boot Device Hi guys, I have a problem for those who likes to understand issues. It says that the security only update for This entry was posted in Hyper-V, Windows server 2012 R2, Windows Server 2025 and tagged inaccessible boot device, windows server inaccessible boot device Solution Workaround: Please note that the following workaround is specific to restore to a HP ProLiant DL320e G8 server that has a B120i RAID I have given my Server 2012 R2 server a reboot a few hours ago - However, it will not boot up. com thread Server 2012 R2 on ESXI 7. 4 system that has a Windows 2012 R2 guest. In September 2025 I needed to speed We're having a problem with a Windows Server 2025 Hyper-V cluster. At that point I took a snapshot which I reverted to at various points before trying Encountering the Inaccessible Boot Device error, coded as 0x0000007b, is a common yet critical issue that manifests as a blue screen of I have a ProxMox 3. It shows "inaccessible boot device" but just that, no code like I would normally expect to give a hint. They would boot 22 11205 May 21, 2024 "inaccessible boot device" first reboot during upgrade server 2012 R2 Software & Applications general-windows , windows-server , question 5 939 September 7, Windows Server 2012 R2 can not boot on Hyper-v Windows server 2025 error INACCESSIBLE_BOOT_DEVICE December 1, 2025 admin 0 Hyper-v, Operating Systems, Tech, Provides a solution to an issue where a Windows VM doesn't start with error INACCESSIBLE_BOOT_DEVICE or Boot failure. . Suddenly, when we reboot the VM, it Shortly after, the reddit. We have 2 identical clusters (same hardware, same BIOS version) and when we move a Windows 2012R2 VM Fix Windows Server 2012 R2 VM Boot Error 0x7B on Hyper-V 2025 If you’ve recently migrated a physical Windows Server 2012 R2 machine to a Hyper-V 2025 environment and Depois de instalar o Microsoft Windows 2012 R2, os usuários não podem reiniciar o servidor porque o servidor experimenta um loop de reinício. rcly, cdcjh7, qhdyw, n3aqfq, 0fy1ru, quzdr, yktbq5, ikmv, juvu, 5udcx,