

Such as checking if your RAM, peripheral devices and other hardware components of your PC are working correctly. ❀ Tip: The POST is a set of routines that run immediately when the PC is started. The error appears right after the POST process is completed and Windows starts to load. When you turn on your computer, the POST (stands for Power On Self Test) process begins to run by BIOS before booting your Windows copy. What Are the Causes of “Windows BOOTMGR is missing” Problem? BOOTMGR can read boot configuration data and display the operating system selection menu. If there is no system reserved partition, BOOTMGR probably locates in your primary partition C.


On most PCs, the partition is labeled as system reserved without a drive letter. Usually, the BOOTMGR file is read-only and is located in the root directory of a partition marked Active. Does anyone have any ideas what could be causing this or how to fix it?”īOOTMGR, short for Windows Boot Manager, is a small piece of software that is loaded from the volume boot code. When I’m in windows on the HDD, it is completely fine to access the files on the SSD. I do not have a Windows cd with me unfortunately otherwise I would be tempted to simply start again. I have windows 11 installed on my SSD and HDD. Everything works great but when I try to boot it says “BOOTMGR is missing”. “Hey guys, so I just built a new pc but I am using my old HDD and SSD from my previous build.
