Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Missing Bootmgr and can't get into BIOS to change Boot order

31 Aug 2014   #1

Missing Bootmgr and can't get into BIOS to change Boot order

I have a Lenovo laptop that is about 4 years old. It was working fine earlier today but when I picked it up to turn it on it was powered down and the message came up saying BOOTMGR is missing Press Ctrl+Alt+Del to restart. I tried to restart and enter the bios to change the boot order so I could boot from my windows 7 usb to repair the problem with the command prompt but it would not let me into the BIOS. I tried burning a windows 7 Disc to try that but again it won't boot from the cd/dvd either. I know how to fix the problem but I cannot access the bios to change the settings. What could that problem be caused by? Is the mother board gone? I have seen other posts similar to this but everyone seems to pay attention to the windows part and not answer why they can't access the BIOS. I have tried all the keys, F2, F8, F12, F10, ESC, Del. Normally the F2 key works for entering the bios and the F12 is for changing the boot order on my machine. Please help with this BIOS problem and ignore the Windows BOOTMGR problem.

Thank you

My System SpecsSystem Spec
31 Aug 2014   #2

Win 10 Pro x64, Win 7 Pro x64

Might help any helpers if you fill in your computer specs. Keep in mind the more information you give, the better the chance that someone can or WILL help you... Computer type: Laptop & OS: Nevada???? are not much to go on, no?
My System SpecsSystem Spec
31 Aug 2014   #3


This is the closest I could find. I don't have the motherboard information though.

Processor Name: Intel Core i5-2410M
Type: General Purpose, Media, Value
Processor Speed: 2.3 GHz
Operating System: Microsoft Windows 7 Home Premium
Weight: 5.47 lb
Screen Size: 15.6 inches
Screen Type: Widescreen
Native Resolution: 1366 x 768
Graphics Card: Intel GMA HD 3000
Graphics Memory: 64
Storage Capacity (as Tested): 640 GB
Rotation Speed: 5400 rpm
Networking Options: 802.11n
Primary Optical Drive: DVD+/-RW (Plus Minus)
Wireless Display Capability (WiDi): Yes
WWAN (Mobile Broadband): WiMAX
Battery Type: 48 Whr (Watt hours)
My System SpecsSystem Spec

31 Aug 2014   #4

Multi-Boot W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64 +Linux_VMs +Chromium_VM

Can you remove the Hard Drive and try to boot up with no Hard Drive ?
That might force a change that will allow you to access BIOS.
My System SpecsSystem Spec
31 Aug 2014   #5


Was finally able to access the bios by removing the battery and holding down the power for a bit to release all residual charge. when I rebooted it allowed access to BIOS. I will keep you updated to see if it will allow me to fix the other problem. Thank you for your help guys.
My System SpecsSystem Spec
31 Aug 2014   #6


Ok once I got the boot order changed I was able to use the repair from the installation disk to fix windows. YAY I dont have to buy another motherboard. At least not yet.
Thanks again.
My System SpecsSystem Spec
31 Aug 2014   #7


I think it was caused by windows updates. When it finally booted back up it had to configure new updates. This is just my opinion though.
My System SpecsSystem Spec
31 Aug 2014   #8
Microsoft MVP


Possible. Install the Updates singly to find out which one is the problem, then System Restore to before it and post it back to our Updates forum or open a email Support case with MS Updates.

I'd always have your HD set first to boot, then use the BIOS One-Time Boot Menu key to trigger media.

On Lenovo if you have the One-Key Recovery button next to the Power button this will also access BIOS and it's Boot menu.
My System SpecsSystem Spec

 Missing Bootmgr and can't get into BIOS to change Boot order

Thread Tools

Similar help and support threads
Thread Forum
can't boot DBAN trying to change boot order in BIOS not working
Hi there, I hope this is the right forum for this question. My son has an i7 custom build computer and the previous owner gummed the computer up good with malware etc. The current setup is Windows 8, but our goal is to install a fresh copy of windows 7 Professional 64-bit which we have...
Backup and Restore
Boot from one of 2 attached drives with BIOS boot order no problem?
I got a SSD now in my system connected to the first sata port with win7 installed My previous (mechanical) sata hard disk who was prev. setup on this port is still usable and also has win7 installed on it. i wnat to use it as a experiment setup. If I connect this old hdd to another sata port say...
Installation & Setup
Missing Bootmgr after bios update Asus p8z68-v pro on Win 7
So I did a bios update to the latest on a Asus p8z68-v pro, after doing so I get a missing boot manager. Only way I can get back into windows is through the bios and then manually selecting a hard drive that does not have the windows install on it. Iv tried the listed fixes and still Im not getting...
General Discussion
Bootmgr missing need help clean install can't access bios or boot sele
I created this account because a) I find this forum very useful and b) this specific problem. My boss' laptop needed fixing. Its a Sony Vaio (VPCEE21FX). I boot it on and after post I get the 'Operating System not found' message. So I grab my handy dandy windows 7 disk. Boot it from that and...
Installation & Setup
Can't access bios, missing bootmgr msg in win 7
I can't access my bios and get msg missing bootmgr enter ctrl alt delete to restart I can't use my win 7 disk or any other disk to fix this because my computer won't read it, and I can't get into the bios to reset the boot priority. I can't use a zip drive cause the computer won't read that...
Hardware & Devices

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 05:05.
Twitter Facebook Google+