Bootmgr is missing


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12:36 AM
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OS
Windows 10
I was prompted to update to windows 11 I clicked update. Everything seemed to be normal It got to the point of restarting my computer. That update did something. In the bootup process, I get bootmgr is missing message and of course, I have seen my desktop since. I would appreciate it if someone could advise me on how to fix this. I wasn't sure if I should put this post under the general discussion category.
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 5 3400g
    Motherboard
    MSI - MPG X570 Gaming Plus
    Memory
    VENGEANCE® LPX 32 gigs (4 x 8)
    Graphics Card(s)
    Graphics built into the CPU
    PSU
    EVGA - W1 Series 600W ATX 12V/EPS 12V 80 Plus Power Supply

The-Hive

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Roll back the update and then try again, unless you have an image then use that
 

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System One System Two

  • OS
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Alienware Area 51m R2
    CPU
    10th Gen Core i9 10900K
    Memory
    32GB
    Graphics Card(s)
    Geforce RTX 2080 Super
    Sound Card
    Nvidia HD
    Screen Resolution
    1920x1080
    Hard Drives
    C: Samsung 2TB P981A
    D: Samsung 2TB 970 Evo
    Case
    Dark side of the moon
    Mouse
    Alienware AW610M
    Browser
    Chrome and Firefox
    Antivirus
    Norton
    Other Info
    Killer E3000 Ethernet Controller
    Killer AX1650i Wi-Fi Network Adaptor
    Alienware Z01G Graphic Amplifier
    Tobii Eye Tracker
  • Operating System
    Dual Boot Windows 11 Pro / Windows 11 Pro Dev build
    Computer type
    Laptop
    Manufacturer/Model
    Dell Inspiron 3501
    CPU
    11th Gen i-7 2.80 gb
    Memory
    16Gb
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    1920 x 1080
    Hard Drives
    512Gb SSD
    WD 2GB EXT
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glasskuter

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I take it you do not have a backup from which to recover.
On another computer, use one of the methods in the following article to create Windows 11 installation usb flash drive. Download Windows 11

Boot the computer from the bootable drive and follow this procedure to fix bootmgr missing.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 21H2 22000.832
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 7080
    CPU
    i9-10900 10 core 20 threads
    Motherboard
    DELL 0J37VM
    Memory
    32 gb
    Graphics Card(s)
    none-Intel UHD Graphics 630
    Sound Card
    Integrated Realtek
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    256 m.2 2230-256+1 tb hdd
    PSU
    500w
    Case
    MT
    Cooling
    Dell Premium
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    so slow I'm too embarrassed to tell
    Browser
    Firefox
    Antivirus
    Defender+MWB Premium
  • Operating System
    Windows 10 Pro 21H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 9020
    CPU
    i7-4770
    Memory
    24 gb
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    256 gb Toshiba BG4 M.2 NVE SSB and 1 tb hdd
    PSU
    500w
    Case
    MT
    Cooling
    Dell factory
    Mouse
    Logitech wireless
    Keyboard
    Logitech wired
    Internet Speed
    still not telling
    Browser
    Firefox
    Antivirus
    Defender+MWB Premium

Marshall Moore

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Thread Starter
Local time
12:36 AM
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11
OS
Windows 10
Thank you both (The Hive and Glasskuter) I will try this when I get home from work and let you know how it turns out. Thank you both.
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 5 3400g
    Motherboard
    MSI - MPG X570 Gaming Plus
    Memory
    VENGEANCE® LPX 32 gigs (4 x 8)
    Graphics Card(s)
    Graphics built into the CPU
    PSU
    EVGA - W1 Series 600W ATX 12V/EPS 12V 80 Plus Power Supply

The-Hive

The First Three Star Guru
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10,210
Location
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My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Alienware Area 51m R2
    CPU
    10th Gen Core i9 10900K
    Memory
    32GB
    Graphics Card(s)
    Geforce RTX 2080 Super
    Sound Card
    Nvidia HD
    Screen Resolution
    1920x1080
    Hard Drives
    C: Samsung 2TB P981A
    D: Samsung 2TB 970 Evo
    Case
    Dark side of the moon
    Mouse
    Alienware AW610M
    Browser
    Chrome and Firefox
    Antivirus
    Norton
    Other Info
    Killer E3000 Ethernet Controller
    Killer AX1650i Wi-Fi Network Adaptor
    Alienware Z01G Graphic Amplifier
    Tobii Eye Tracker
  • Operating System
    Dual Boot Windows 11 Pro / Windows 11 Pro Dev build
    Computer type
    Laptop
    Manufacturer/Model
    Dell Inspiron 3501
    CPU
    11th Gen i-7 2.80 gb
    Memory
    16Gb
    Screen Resolution
    1920 x 1080
    Hard Drives
    512Gb SSD
    WD 2GB EXT
    Browser
    Chrome
    Antivirus
    Norton

glasskuter

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12:36 AM
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The Lone Star State of Texas
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Windows 11 Pro 21H2 22000.832
@Marshall Moore More than likely, at the splash screen your can hit f12 to enter boot options where you can select the boot usb drive. If f12 doesn't work try ESC.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 21H2 22000.832
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 7080
    CPU
    i9-10900 10 core 20 threads
    Motherboard
    DELL 0J37VM
    Memory
    32 gb
    Graphics Card(s)
    none-Intel UHD Graphics 630
    Sound Card
    Integrated Realtek
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    256 m.2 2230-256+1 tb hdd
    PSU
    500w
    Case
    MT
    Cooling
    Dell Premium
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    so slow I'm too embarrassed to tell
    Browser
    Firefox
    Antivirus
    Defender+MWB Premium
  • Operating System
    Windows 10 Pro 21H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 9020
    CPU
    i7-4770
    Memory
    24 gb
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    256 gb Toshiba BG4 M.2 NVE SSB and 1 tb hdd
    PSU
    500w
    Case
    MT
    Cooling
    Dell factory
    Mouse
    Logitech wireless
    Keyboard
    Logitech wired
    Internet Speed
    still not telling
    Browser
    Firefox
    Antivirus
    Defender+MWB Premium

Marshall Moore

Member
Thread Starter
Local time
12:36 AM
Posts
11
OS
Windows 10
I believe I can get into BIOS. My approach is to double-check that the boot order is correct. If that works great! If not I have made a bootable Windows 11 USB with Windows Media Creation Tool. I will try to get into WinRe and try troubleshooting from there. I have been working all day I don't feel like getting into a possible 3-hour ordeal right now. I will let you know how it turns out. I will mark this thread solved when it is solved. I am going to fix it one way or another. Like, take it to a PC repair shop. I want to try first, but I am not going to beat myself up over it and get stressed out lol.
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 5 3400g
    Motherboard
    MSI - MPG X570 Gaming Plus
    Memory
    VENGEANCE® LPX 32 gigs (4 x 8)
    Graphics Card(s)
    Graphics built into the CPU
    PSU
    EVGA - W1 Series 600W ATX 12V/EPS 12V 80 Plus Power Supply

glasskuter

Well-known member
Pro User
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Local time
12:36 AM
Posts
2,223
Location
The Lone Star State of Texas
OS
Windows 11 Pro 21H2 22000.832
Boot order should have "windows boot manager" first if using uefi. Good luck.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 21H2 22000.832
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 7080
    CPU
    i9-10900 10 core 20 threads
    Motherboard
    DELL 0J37VM
    Memory
    32 gb
    Graphics Card(s)
    none-Intel UHD Graphics 630
    Sound Card
    Integrated Realtek
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    256 m.2 2230-256+1 tb hdd
    PSU
    500w
    Case
    MT
    Cooling
    Dell Premium
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    so slow I'm too embarrassed to tell
    Browser
    Firefox
    Antivirus
    Defender+MWB Premium
  • Operating System
    Windows 10 Pro 21H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 9020
    CPU
    i7-4770
    Memory
    24 gb
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    256 gb Toshiba BG4 M.2 NVE SSB and 1 tb hdd
    PSU
    500w
    Case
    MT
    Cooling
    Dell factory
    Mouse
    Logitech wireless
    Keyboard
    Logitech wired
    Internet Speed
    still not telling
    Browser
    Firefox
    Antivirus
    Defender+MWB Premium

AlanJr

Member
Local time
1:36 AM
Posts
23
OS
Windows 11
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    MSI Motherboard
    CPU
    AMD RYZEN 7
    Motherboard
    MSI
    Memory
    32 GB
    Graphics Card(s)
    EVGA GEFORCE 3060 TI
    Sound Card
    Realtek
    Monitor(s) Displays
    2 HP 24 inch
    Screen Resolution
    1600 x 1280
    Hard Drives
    M.2 and SSD 2 TB total
    PSU
    REDRAGON 1000watt
    Case
    Microcenter
    Cooling
    watercooled
    Keyboard
    steel Gauges
    Mouse
    Logitech
    Internet Speed
    1 Gigabit
    Browser
    chrome
    Antivirus
    Kaspersky
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