Inaccessible boot device windows server 2012 r2. The guest has been running fine.


Inaccessible boot device windows server 2012 r2. There were no updates installed. This is slow! bcdboot D:\windows /s C: /f ALL Per Microsoft, “The ALL part of the bcdboot command writes all the boot files (both UEFI and BIOS) to their respective Feb 17, 2025 · [German]Since the release of Windows Server 2025, a boot problem in iSCSI environments was confirmed by Microsoft as a known issue. After completing the restoration, the VM would not proceed past the boot process, displaying the error: inaccessible boot device. 5 cluster via VMware converter 6. Feb 13, 2017 · Inaccessible boot device - Server2012 Hyper-v VM Windows windows-server question jamesanctil2 (JamesAntkill) February 13, 2017, 8:32pm Feb 13, 2017 · Inaccessible boot device - Server2012 Hyper-v VM Windows windows-server question matt234 (momurda) February 13, 2017, 8:24pm Apr 24, 2024 · Incorrect disk configurations can lead to boot device errors. I think I found the issue - see screenshot below Boot manager is saying Jun 25, 2019 · I was experiencing the error “inaccessible boot device” on the first reboot during upgrade of server 2008 R2 to server 2012 R2 on a VMware VM. When I boot my desktop PC from the USB drive it boots up fine (after a while) an Feb 13, 2017 · Hi All, After rebooting a 2012 R2 VM - I am receiving “INACCESSIBLE_BOOT_DEVICE” error. microsoft. sys status: 0xc0000359 @ader1990 <https://github Feb 13, 2017 · Inaccessible boot device - Server2012 Hyper-v VM Windows windows-server question sumindersingh (sumindersingh) February 13, 2017, 8:37pm Jul 19, 2025 · Windows 2025 server - Moved 3x Windows 2012 R2 VMs to it back in April time - They are archival manual boot access for old accounts system. 18. Microsoft has now provided a fix for this problem on February 11, 2025 and lists the issue as resolved. Backups don’t work, I can’t find what causes this thing and I can’t even restart these servers cause I’ll have to rebuild them. There is no hardware RAID card, the 4x hard drives just hook straight into the motherboard via SATA, just like a desktop PC. 1) Preferably, remove VMware Tools from Sep 26, 2023 · この記事では、Windows Server 2012 R2で「Inaccessible Boot Device」エラーを修復するための効率的な6つのオプションを提供し、またユーザーのシステムを保護するための役立つバックアップソフトウェアも提供しています。 Feb 22, 2023 · Learn how the INACCESSIBLE_BOOT_DEVICE bug check indicates that the Microsoft Windows operating system has lost access to the system partition during startup. I think I found the issue - see screenshot below Boot manager is saying May 30, 2024 · Diagnose and fix the INACCESSIBLE BOOT DEVICE stop code, which results when Windows can't boot from your drive. 0 that causes problems. Mar 7, 2022 · Summary: I had to detach Windows Server boot drives in our Server 2012 R2 and 2019 VMs to change their configuration from SCSI to IDE so that Windows Server would no longer get stuck endless booting this morning (spinning circle, no error, no crash, but no progress in the boot process). How to Fix ‘Boot Device Inaccessible’ Error? Sep 3, 2020 · Hi all I'm hoping you can all help me with a major issue we are having. In September 2025 I needed to speed up this process so I was searching the internet for a possible solution. The Startup Repair in Windows Installation tool can help you to scan for corrupted or missing system files on your computer, and then replace them if needed. Sep 14, 2019 · I have a Server 2012 R2 (as a VM on Esxi) that’s been running for years without any problems and suddenly I get BSOD. This entry was posted in Hyper-V, Windows server 2012 R2, Windows Server 2025 and tagged inaccessible boot device, windows server 2012 r2 vm on hyper-v 2025 on September 7, 2025 by manojlovicl. 3. 1 or Windows Server 2012 R2. Jan 24, 2024 · Hi guys, I have a problem for those who likes to understand issues. My thinking: a Windows Update corrupted something but the Windows would run until reboot (9 days of backups without reboot). RESOLUTION/WORKAROUND: I have given my Server 2012 R2 server a reboot a few hours ago - However, it will not boot up. Boot off the System Recovery Disk (SRD) Go to Utilities/Load a Driver (provide hpsa2. 0 or SD device. I've also created a testing Gen 1 VM and attached the boot drive to the IDE and Hyper-V just starts the guest with a black screen and blinking cursor. masala) September 7, 2020, 5:49pm Feb 13, 2017 · Inaccessible boot device - Server2012 Hyper-v VM Windows windows-server question jamesanctil2 (JamesAntkill) February 13, 2017, 8:39pm May 7, 2025 · 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 controller. VM issues - Server 2012 blue screens "Inaccessible boot device", DR issues, in deep shit. 1. This can be seen from an entry on the relevant Microsoft Windows Release Health dashboard. 3. This issue was causing 'boot device inaccessible' errors during startup. 01. Hey guys, Reaching out to hopefully get some expert advice on what has snowballed into quite a shit storm for me. Worked fine at time. Dec 20, 2013 · Thank you, Adrian Vladu On May 25, 2017 11:59 AM, jackchenjie <notifications@github. Aug 8, 2024 · Provides a solution to an issue where a Windows VM doesn't start with error INACCESSIBLE_BOOT_DEVICE or Boot failure. Apr 16, 2014 · 我有一台服务器2012r2，我刚刚安装了KB2919355 (最近为Windows8. It says that the security only update for Windows Server 2012 R2 has a patch VMWare, Inc. Sep 7, 2020 · "inaccessible boot device" first reboot during upgrade server 2012 R2 Windows windows-server question shyammasala9195 (shyam. com Challange! Can you fix this server without restoring it from a backup? Rebooted a server after pending windows updates and was left with "INACCESSIBLE BOOT DEVICE" HPE ML110 G9 with 2 disks in a MIRROR on a B410i Post Possible solutions below. VM lives on a Drobo Mini RAID attached via USB-A. old bootrec /rebuildbcd This time it identified the Windows, but even after restarted, nothing worked. I think one of the drives is dying, causing RAID degradation. 主机目录下存在\windows\system32大量MpKslXXXXXX. Use bcdboot to recreate the boot files. Maintaining proper backups, testing recovery plans and following server best practices can help avoid or recover quickly from such critical boot errors. . We’ve also removed a load of pending and installed rollups without any Jul 19, 2025 · We're having a problem with a Windows Server 2025 Hyper-V cluster. Mar 9, 2024 · Encountering the Inaccessible Boot Device error, coded as 0x0000007b, is a common yet critical issue that manifests as a blue screen of death, often following a Windows update or system reset. inf to load the driver so that disks can be seen prior to starting the restore) Jan 23, 2024 · Try disabling secure boot on the VM and try again. Sep 27, 2023 · Rebuilding the damaged boot drive or reinstalling Windows Server may be required in persistent cases. I’m not sure this is required if you’re continuing to bcdboot. Then I logged in with safe mode and disabled Hyper-V on startup by using the cmd code 'bcdedit /set hypervisorlaunchtype off' . Apr 20, 2017 · A virtual server (Windows Server 2012 R2 64-bit) was recently found to be in a failed state following routine security patching. 5. Came in to do monthly maintenance on some servers this morning at 6AM. Mar 26, 2016 · I have a ProxMox 3. Here are the steps I followed to successfully restore the VM. iSCSI "Boot Device inaccessible" Bug In the blog post Windows Server Jan 21, 2024 · I restarted my server 2016 and out of the blue, I got an Inaccessible Boot Device. In other cases the INACCESSIBLE BOOT DEVICE problem can occur after upgrading Windows 7 to Windows 10 or due to invalid BIOS settings, a corrupted file system or a damaged hard disk drive. I tried to boot into SAFE Mode with a Command Prompt, and it just goes to Blue Screen on the next reboot saying “Inaccessible Boot Device”. If you have more than one physical or virtual disk present at the time of install, windows of any flavour will throw the boot loader on the second disk. We have had two server 2012 R2 servers and one 2008 R2 server give us the dreaded inaccesible boot device (0x7b) BSOD. The guest has been running fine. Webroot, Acronis ArcServe, and StorageCraft products are the most common offenders. We are using IDE for the disk and the following settings: Hardware: Options: Using dism from the Dec 6, 2017 · 迁移完成后主机无法进入Windows系统，是由于AWS源系统存在问题，非迁移问题，该主机存在的问题汇总如下： 1. Nov 9, 2021 · Inaccessible Boot Device error on Windows 10 or 11 is a “blue screen of death” (BSOD) error that stops Windows from booting properly. Windows Feb 14, 2025 · In case you didn't know Microsoft has fixed a known issue affecting Windows Server 2025 installations using iSCSI. (Yes, this VM had been migrated from VMware to Parallels and back to VMware over the years. When performing the initial installation of windows, make sure you only have one drive present. May 7, 2025 · Suddenly, when we reboot the VM, it always goes to a BSOD that says Inaccessible Boot Device. Includes installation instructions for both USB and ISO installation media. My environment is getting a bunch of vms after some windows updates that will not boot into server 2012. I can access the drive without any issues via boot disks, checked disks in disk part, tried offline registry to check the LSI drivers has right start values. Sep 15, 2024 · Rod, Here’s an update. You can generally boot into the BIOS by press F1, F2, Del, F10, F12, or Esc while your computer boots up. It will bluescreen with the error message "INACCESSIBLE_BOOT_DEVICE". Whenever I boot the created C Drive, I get this error: Jul 29, 2025 · Problem booting Windows 2012R2 VM on Windows 2025 Hyper-V one of the customer, which running on the Windows Server 2025 Failover Cluster and have 3 identical nodes and shared SAN storage have problem with booting of the Windows Server 2012 R2 Guest VM. Three weeks ago, two Hyper-V VM stopped booting. Monitor Hyper-V hosts and/or clusters for VM checkpoints using Powershell (backup leftovers, forgotten checkpoints …) Sep 13, 2020 · Was doing routine updates and one of our Windows Server 2019 hypervisors didn't come back up afterwards. I did a in place upgrade on one from 2008 R2 to 2012 R2 Datacenter that worked fine. Once I turned off the VM I can no longer get into the recovery partition. Then… The BIOS is the most current version, I am able to install Server 2012 and Server 2008 R2 but not Server 2012 R2 for some reason. I just Jun 2, 2025 · The most likely cause for the "Inaccessible Boot Device" error, aside from hardware failure or other issue preventing access to the Windows installation, is a corrupt or missing filter driver. It’s also a good way to repair the BCD data file in case it’s damaged or missing. We have 2 identical clusters (same hardware, same BIOS version) and when we move a Windows 2012R2 VM from one cluster to another it does not boot any more (tested with 2 different… Feb 13, 2017 · Hi All, After rebooting a 2012 R2 VM - I am receiving “INACCESSIBLE_BOOT_DEVICE” error. Sometimes, it won’t let you boot into Windows at all, which can be a little bit unnerving. It has an Intel “fake RAID” which I think is at least part of the issue. I have tried converting and choosing mutliple types of disk controllers and it doesn't seem to matter I get a BSOD on VM startup with an Inaccessible_Boot_Device. It is worth noting that doing a bootrec See full list on learn. This entry was posted in Hyper-V, Windows server 2012 R2, Windows Server 2025 and tagged inaccessible boot device, windows server 2012 r2 vm on hyper-v 2025 on September 7, 2025. Jan 15, 2025 · 讨论在重新配置关键硬件设备后收到“停止”错误（INACCESSIBLE_BOOT_DEVICE）。 Mar 15, 2021 · Use Windows Startup Repair To Repair issue. Windows Server 2012 vm that had been working just fine for a long time. One of them we no longer needed (2008 server) so was no loss but the other two I couldn't get going again Jan 23, 2024 · Hi guys, I have a problem for those who likes to understand issues. Was removing some not often used software from WindowsI recall the titles being FileZilla and Parallels Tools. Feb 18, 2016 · Last known good configurations; didn’t work Installed KB2966870 using command line Did bootrec /rebuildbcd, but it said that 0 Windows were identified so did the following bcdedit /export c:\bcdbackup attrib c:\boot\bcd -h -r -s ren c:\boot\bcd bcd. I was able to recover a backup I had 10 days before (other backups would not boot either). We are using IDE for the disk and the following settings: Hardware: Options: Using dism from the May 6, 2017 · English translation and technical improvement: I encountered a similar issue while attempting to restore a Windows Server 2012 R2 VM from VMWare to Hyper-V 2022. I was able to recover a backup I had 10 days before (other backups wo&hellip; Mar 26, 2018 · 3 I need to migrate my Server 2012 R2 Fileserver (physical) to another Server (virtual). 02) - Lenovo Support LK shows that this software packages is designed for: Windows Server 2012 Windows Server 2012 R2 Windows Server 2016 Oct 25, 2022 · When I enabled the Hyper-V and restart, windows goes to the bluescreen having the error code: Inaccessible_Boot_Device. Jan 24, 2024 · Windows Server 2022 won't boot: Inaccessible boot device Windows windows-server question alexdesautels2517 (Alex - CertiNET) January 24, 2024, 7:11pm Sep 6, 2023 · 真实案例：Windows Server无法访问启动设备 “我昨天在Windows Server 2016上工作，运行正常，关机之前我更新了操作系统。早上发现Windows Server出故障了。我重新启动了几次，但当Windows加载徽标出现在屏幕上时，它大约会卡在这里5分钟，然后显示蓝屏，提示Windows Server无法访问启动设备。我该如何修复 Jun 25, 2019 · "inaccessible boot device" first reboot during upgrade server 2012 R2 Windows windows-server question gregory-for-microsoft (Gregory for Microsoft) June 25, 2019, 11:32am Dec 24, 2024 · Want to fix the inaccessible boot device error in Windows PC? Here are the best solutions you can try to fix your boot device and get access to your Windows PC. 4 system that has a Windows 2012 R2 guest. Feb 13, 2017 · Hi All, After rebooting a 2012 R2 VM - I am receiving “INACCESSIBLE_BOOT_DEVICE” error. I have created a bootable USB flash drive of Windows Hyper-V Server 2012 R2 Core following the guides here and here. Feb 14, 2017 · Inaccessible boot device - Server2012 Hyper-v VM Windows windows-server question jamesanctil2 (JamesAntkill) February 14, 2017, 8:56pm May 21, 2024 · Have you worked this out ? I’m facing the same issue and I’ve tried everything. Any ideas on how to fix it? Apr 18, 2024 · After installation and system restart I started getting the INACCESSIBLE BOOT DEVICE BSOD during the boot stage MegaRAID Storage Manager Application for Windows (17. 0 thumb drive/Secure Digital (SD) and tries to boot from this USB3. It’s the infamous inaccessible boot device. You can also boot into the BIOS by selecting UEFI Firmware Settings in Windows Recovery Environment. 05. Getting inaccessible_boot_device error. I am still suspecting KB2919355 and tried to remove the package from the WIM files but DISM will not allow it saying the packages are Permanent. Sep 7, 2025 · Solutions to resolve the Windows Stop 0x0000007B INACCESSIBLE_BOOT_DEVICE error, including hardware checks, boot sequence configuration, and recovery options. Suddenly, when we reboot the VM, it always goes to a BSOD that says Inaccessible Boot Device. After recovering, one of the Jan 7, 2025 · The Windows Server 2012 R2 on VMWare is EFI, so I've used Gen 2 on the Hyper-V side to match the EFI. Jul 20, 2020 · "inaccessible boot device" first reboot during upgrade server 2012 R2 Windows windows-server question spiceuser-wdjne (KX9KX) July 20, 2020, 3:31pm Jan 28, 2020 · "inaccessible boot device" first reboot during upgrade server 2012 R2 Windows windows-server question spiceuser-dmk5c (spiceuser-dmk5c) January 28, 2020, 11:26pm The Inaccessible Boot Device error is a common system error that can occur when Windows Server 2012 R2 fails to load due to an issue with the boot configuration or hardware. Here's how to use the Deployment Image Servicing and Management Tool (dism) in the Windows Recovery Environment to fix a Server that fails to boot after appl Feb 14, 2017 · Inaccessible boot device - Server2012 Hyper-v VM Windows windows-server question jamesanctil2 (JamesAntkill) February 14, 2017, 2:57pm Jan 30, 2019 · After installing Microsoft Windows 2012 R2, users cannot restart the server because the server experiences a restart loop. Oct 31, 2020 · iMac 2019 running Fusion 11. sys未知文件，注册表被修改。 Feb 20, 2025 · 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. I think I found the issue - see screenshot below Boot manager is saying Jan 5, 2021 · Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V This has been an issue since server 2000/win XP days. ) The Parallels Sep 26, 2019 · Find answers to Windows 2012 R2 - inaccessible boot device from the expert community at Experts Exchange Dec 24, 2016 · 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 case, it looks like something might be removing the Hyper-V integration drivers from your VM. Nov 2, 2022 · The BSOD INACCESSIBLE BOOT DEVICE problem often occurs after a Windows update or after refreshing or reinstalling Windows 10 (or Windows 8). Aug 27, 2024 · If you receive INACCESSIBLE_BOOT_DEVICE Blue Screen after you have upgraded to Windows 11/10, then this posts suggests ways to overcome the issue. com> wrote: hi ader: i add servers SATA driver to windows server 2012 image , and i use ironic deploy windows serve 2012,appear to new error: error_logs: windows boot manager file:\windows\System32\drivers\arcsas. This guide delineates five effective methods to rectify the Inaccessible Boot Device on Windows Server 2019. There was an issue like this with VMware a while back, I believe a KB for the OS caused this, not sure if it’s 100% fixed. That's why I need to create VHDX Files to run them later in Hyper-V All my drives were no problem, except the C Drive. Instead it gives the error "INACCESSIBLE BOOT DEVICE". Sep 17, 2015 · Hello Gurus - I have a test environment vmware host that i have a few windows server 2008 R2 on. Sep 15, 2017 · Trying to migrate 4 VMs from 2012 R2 Hyper-V Server to a mixed vSphere 6/6. The machine goes into repair mode and can no longer boot. com thread Server 2012 R2 on ESXI 7. Sep 16, 2015 · This is a physical server that was running Server 2012 R2. Only a simple reboot of the system. I got around this by using the boot env or an install ISO and running bcdboot [x]:\windows and that would let it hit the driver signature failed or inaccessible boot device, then I could just turn off driver signing Nov 2, 2021 · Shortly after, the reddit. – SCSIAdapter – 1. Trying to migrate 4 VMs from 2012 R2 Hyper-V Server to a mixed vSphere 6/6. They would boot into WinPE only. Jul 1, 2019 · "inaccessible boot device" first reboot during upgrade server 2012 R2 Windows windows-server question cynlis (cynlis) July 1, 2019, 5:36pm The most likely cause for the "Inaccessible Boot Device" error, aside from hardware failure or other issue preventing access to the Windows installation, is a corrupt or missing filter driver. So far we’ve had; Bypass Raid ? - RAID is onboard and switching back to SATA/AHCI mode results in Dec 11, 2014 · INACCESSIBLE_BOOT_DEVICE on Hyper-V 2012 R2 virtual machines Ask Question Asked 10 years, 10 months ago Modified 1 year, 7 months ago Sep 7, 2025 · 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. May 26, 2021 · When upgrading a Virtual Machine from Windows 2008 r2 to Windows 2012 server, an Error occurred when Virtual machine reboots for first time inaccessible_boot_device. 1和server 2012发布的超级800+MB修补程序)。服务器是戴尔Poweredge R715。在RAID1中，H200控制器上的磁盘是2x500GBSAS。在更新之前，服务器运行得很好--而且我已经安装了戴尔管理工具，所以我知道没有任何故障磁盘警告或任何东西。在我升级H200控制器 We would like to show you a description here but the site won’t allow us. May 26, 2025 · How to fix the “Windows Server 2016 inaccessible boot device” issue effortlessly and effectively? Here are 5 solutions to it! Nov 13, 2024 · If you are using a Windows Installation Media, click Repair your computer in the lower-left corner. 1 . Run CHKDSK: If the laptop is stuck in a reboot loop with the "INACCESSIBLE BOOT DEVICE" error, you can try running CHKDSK from the Windows Recovery Environment to check for and repair any disk errors. Nov 5, 2024 · When I go to power up the migrated VM on the Hyper-V host, I get the Windows BSOD stating "Inaccessible Boot Device". 0 non-accessible boot device from Windows paravirtual SCSI patch was created. I've Customer performs Microsoft Windows Server 2012/ (R2) and Windows Server 2012 R2 Hyper-V with installation from a USB3. Others in this thread have already given you directions on how to repair the issue. Now i have a microsoft web server 2008 r2 that I am doing the same thing as well. Sep 5, 2024 · Has anyone had an "inaccessible boot device" stop error on Windows Server 2019 after a failed Windows Update, and managed to get the server to boot again without Oct 1, 2024 · Re-create the boot configuration database: bootrec /rebuildbcd. I can boot to F8 > Safe Mode, but it only gives me repair options, like a 在这个集群上运行着几个虚拟机；其中一些是运行Windows Server 2008 R2的第1代虚拟机，而大多数是运行Windows Server 2012 R2的第2代虚拟机；它们也包含了最新的可用更新；实际上，它们是从一个模板部署的，该模板是在集群之后不久构建的，并且在Microsoft发布新的补丁 Sep 7, 2025 · This entry was posted in Hyper-V, Windows server 2012 R2, Windows Server 2025 and tagged inaccessible boot device, windows server 2012 r2 vm on hyper-v 2025 on September 7, 2025. After opening the console session to the affected server in vCenter, I found it was stuck at the Windows Server troubleshooting screen (proceed to start Windows normally, advanced troubleshooting, shut down). Jul 19, 2025 · Windows 2025 server - Moved 3x Windows 2012 R2 VMs to it back in April time - They are archival manual boot access for old accounts system. 6 on macOS Catalina. The booting process may halt at INACCESSIBLE_BOOT_DEVICE and system forces to reboot continuously. The solution was to Jan 15, 2025 · Discusses that you receive a Stop error (INACCESSIBLE_BOOT_DEVICE) after you reconfigure critical hardware devices. Provides an update and an hotfix to fix restart problems after you install update rollup 2919355 in Windows 8. izdz uty pym8roh le igf3k qa 7jpr ebs0t rfch6 kwdtqc