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Help! Boot manager has disappeared.

Splinterdog

Splinterdog

Joined
Feb 13, 2016
Messages
3,427 (1.02/day)
Location
Buenos Aires
System Specs
System Name Ryzen Monster
Processor Ryzen 7 5700X3D
Motherboard Asus ROG Crosshair Hero VII WiFi
Cooling Corsair H100i RGB Platinum
Memory Corsair Vengeance RGB Pro 32GB (4x8GB) 3200Mhz CMW16GX4M2C3200C16
Video Card(s) Asus ROG Strix RX5700XT OC 8Gb
Storage WD Black 500GB NVMe 250Gb Samsung SSD, OCZ 500Gb SSD WD M.2 500Gb, plus three spinners up to 1.5Tb
Display(s) LG 32GK650F-B 32" UltraGear™ QHD
Case Cooler Master Storm Trooper
Audio Device(s) Supreme FX on board
Power Supply Corsair RM850X full modular
Mouse Corsair Ironclaw wireless
Keyboard Logitech G213
VR HMD Headphones Logitech G533 wireless
Software Windows 11 Start 11
Benchmark Scores 3DMark Time Spy 4532 (9258 March 2021, 9399 July 2021)
It's one of my work machines and after using it to test a customer HDD, my SSD won't boot to Windows 11.
Steps taken so far:
Using WinPE I noticed that it wasn't assigning a drive letter so it wasn't appearing in Explorer. I then assigned E and I could at least see the contents for backup. With hidden/system files exposed, no boot files are there. Bootmgr has just disappeared.
Bootsec /rebuildbcd finds a Windows installation but I get 'the requested system device not found' message. I then made sure not to use a USB 3.0 port but that didn't fix it.
fixboot has no errors but fixmbr says access denied.
I haven't made any other changes to the drive, can easily do a clean install, but would prefer to fix the issue first.
Any ideas?
Thanks.
 
I followed this thread which is very informative and I learned about Macrium.
www.techpowerup.com

[Solved] Windows Cannot Boot: GPT Partitions Missing Boot & System Flags

I'm sorry for asking for help, but I'm really desperate right now. For days I've been trying to boot into my Windows (8.1 Pro) but I always fail because my system will never boot into Windows login screen. I can see Windows logo and the spinning dots, but before I can see the login screen, I...
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Using a Win PE rescue boot, Macrium is included, but unfortunately, rebuild bootmgr was greyed out and I had to admit defeat, which I hate.
Back up what little there was an am now doing as clean install of Win 11.
 
Could be that win11 isnt supported just yet. I am no expert in this topic, but had you tested the customer's hdd by booting from it? The os on that hdd could mess up the partitions of ur ssd, if booting from a foreign disk is essential, i always disconnect the primary ssd just in case (in bios there are options to disable individual sata ports too).
 
I had to boot from my primary ssd to look at the cutomer's HDDs, bu that's what f**d it up it seems. Next time, WinPE to boot and check customer HDD.
Lesson learned,
 
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