"Bootmgr is missing Press Ctrl+Alt+Del to restart" - After I installed a new fan... What do?


Oct 26, 2016
Hello all. Yesterday I went out and bought myself a new cooler for my cpu cause my old one was shitty and garbage. After putting my pc back together I would get an error message as the title states:

"Bootmgr is missing Press Ctrl+Alt+Del to restart"

I know this is a result of me not putting back my ssd/hd/optic drive SATA connections in the same order as before and now the PC is confused (from what I've read online).

Are there any feasible solutions for me if I don't have a readily available Windows 7 install disk?

Here are my specs:

CPU: [Intel Core i5-4670K]
CPU Cooler: [NEW Corsair CW-9060015-WW Hydro Series H75 Liquid CPU Cooler]
Motherboard: [MSI Z87-G45]
Memory: [G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-8GBRL]
GPU: [EVGA 04G-P4-2768-KR G-SYNC Support GeForce GTX 760 4GB 256-Bit GDDR5 PCI Express 3.0 SLI Support SC 4GB w/ EVGA ACX Cooler Video Card]
SSD: [Kingston SSDNow v300 120GB]
HD: [Seagate Desktop HDD ST1000DM003 1TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive]
Operating System: [Microsoft Windows 7 Ultimate Edition Service Pack 1 (build 7601), 64-bit Service Pack 1 Size: 64-bit, Edition: Ultimate, Version: 6.1.7601, Locale: 0409]


Dec 29, 2015
I mean there's not too many options here. You can try running Startup Repair, but that's for repairing a Boot Manager, not replacing one completely. Still may be worth a try in the oft chance that it works. If it doesn't, then be prepared to re-format the computer via a re-install of the software. As for the recovery media, you can download Windows 7 media from the Microsoft website.

Always a great idea to run a backup before you do any changes like this. If you don't already, I recommend using a disk imager (i.e. Macrium Reflect) or a snapshot tool (i.e. RollBack Rx). A simple backup would've saved you hours of downtime.