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missing bootmgr

MxPhenom 216

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A clients PC i built them about 3 or 4 years ago has worked flawlessly till yesterday when it turned itself off, and now when at boot it says hard drive missing, then goes to a screen that just says missing boot mgr. What do i do?
 
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Last time I had that, the boot order for my hard drives reset in the bios, so I just went in and changed it back to booting off the windows drive first, and it worked.
 

MxPhenom 216

ASIC Engineer
Joined
Aug 31, 2010
Messages
12,945 (2.60/day)
Location
Loveland, CO
System Name Ryzen Reflection
Processor AMD Ryzen 9 5900x
Motherboard Gigabyte X570S Aorus Master
Cooling 2x EK PE360 | TechN AM4 AMD Block Black | EK Quantum Vector Trinity GPU Nickel + Plexi
Memory Teamgroup T-Force Xtreem 2x16GB B-Die 3600 @ 14-14-14-28-42-288-2T 1.45v
Video Card(s) Zotac AMP HoloBlack RTX 3080Ti 12G | 950mV 1950Mhz
Storage WD SN850 500GB (OS) | Samsung 980 Pro 1TB (Games_1) | Samsung 970 Evo 1TB (Games_2)
Display(s) Asus XG27AQM 240Hz G-Sync Fast-IPS | Gigabyte M27Q-P 165Hz 1440P IPS | Asus 24" IPS (portrait mode)
Case Lian Li PC-011D XL | Custom cables by Cablemodz
Audio Device(s) FiiO K7 | Sennheiser HD650 + Beyerdynamic FOX Mic
Power Supply Seasonic Prime Ultra Platinum 850
Mouse Razer Viper v2 Pro
Keyboard Razer Huntsman Tournament Edition
Software Windows 11 Pro 64-Bit
Last time I had that, the boot order for my hard drives reset in the bios, so I just went in and changed it back to booting off the windows drive first, and it worked.

thats all it is??
 

MxPhenom 216

ASIC Engineer
Joined
Aug 31, 2010
Messages
12,945 (2.60/day)
Location
Loveland, CO
System Name Ryzen Reflection
Processor AMD Ryzen 9 5900x
Motherboard Gigabyte X570S Aorus Master
Cooling 2x EK PE360 | TechN AM4 AMD Block Black | EK Quantum Vector Trinity GPU Nickel + Plexi
Memory Teamgroup T-Force Xtreem 2x16GB B-Die 3600 @ 14-14-14-28-42-288-2T 1.45v
Video Card(s) Zotac AMP HoloBlack RTX 3080Ti 12G | 950mV 1950Mhz
Storage WD SN850 500GB (OS) | Samsung 980 Pro 1TB (Games_1) | Samsung 970 Evo 1TB (Games_2)
Display(s) Asus XG27AQM 240Hz G-Sync Fast-IPS | Gigabyte M27Q-P 165Hz 1440P IPS | Asus 24" IPS (portrait mode)
Case Lian Li PC-011D XL | Custom cables by Cablemodz
Audio Device(s) FiiO K7 | Sennheiser HD650 + Beyerdynamic FOX Mic
Power Supply Seasonic Prime Ultra Platinum 850
Mouse Razer Viper v2 Pro
Keyboard Razer Huntsman Tournament Edition
Software Windows 11 Pro 64-Bit
yep that worked.
 
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Display(s) AOC 27" 1920x1080 IPS and Wacom Cintiq 13" HD
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Audio Device(s) Realtek HD audio, Pyle Pro PTA2 Amp, Sony SS-B3000 Speakers, Sennheiser HD595 headphones
Power Supply Antec 750W "High Current Gamer"
Mouse SteelSeries Diablo 3
Keyboard Rosewill Mechanical with cherry black keys
Software Windows 7 Ultimate 64
Yea, I don't know why that happens, but it has happened to me like three times over the last couple years. First time it happened, it scared the shit out of me, hehe.
 
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