Windows boot manager - Toshiba Satelite A135-S4487 Notebook

You may have to go into the setup (BIOS) and check to see that the CD-ROM is enabled as a boot device. Some BIOS allow you to disable the CD-ROM as a boot device. It would not be listed in the boot manager if that were the case.

Windows boot manager has been blocked by the current security pollicy

Here is thread that may be helpful...
http://answers.microsoft.com/en-us/windows/forum/windows_vista-system/missing-boot-manager/6d2d2f04-8b02-446c-8045-f3638f2ca600
and this...
http://pcsupport.about.com/od/findbyerrormessage/a/bootmgr-is-missing.htm

Hi Jeff,

I see you are having issue installing windows, getting an error the the Boot Manager is missing...

The windows Disc that you have is this a burnt copy? possible that the installation files on the Windows you have is incomplete.

But if I may ask before you tried installing this Windows what windows did you have on your computer?

Have you tried booting the disc directly from the CD drive instead of installing it from within windows.

Go into BIOS and change the boot configuration of you Computer make sure the the CD/DVD drive is selected as the primary boot option before the hard drive, once that is done restart your computer make sure that you Windows disc is in the cd/dvd drive, you should get a prompt on the upper left saying to boot from cd press any key - press Enter right away once you see that prompt this should boot from the disc for the installation to continue but if still it looks for the Boot Manager the copy of your installation disc maybe incomplete.

Also you can try to wipe clean you hard drive and try again again with the installation.

Hi There,
I'm having trouble understanding what you mean by this - are you attempting to boot from LAN? Are you able to boot into windows at all?
What it sounds like is that your computer is either missing a boot manager, or you've assigned (in the bios) LAN boot as the priority boot device.
If that's the case, you can change the boot device priority back to internal hard disk in your BIOS (pressing F2 or F10 at startup splash screen)
If you're missing a boot manager for a windows installation, you can insert your windows installation disk and select "repair an existing installation" to repair your boot manager

Step 1 Turn on your computer.
Step 2 Press the space bar on the keyboard immediately after the BIOS screen appears and before the Windows logo screen appears. Press "F8" to access the boot options.
Step 3 Select an operating system to boot and press "Enter."

Try to remove RAM and reinsert it

Boot Manager is missing If the boot partition no longer can be found, then Vista will display the following error: BOOTMGR is missing. Press Ctrl+Alt+Del to restart
The Windows Boot Configuration Data file is missing required information
More Info MS KB 919529 More Info MS KB 927391 Check points for fixing missing boot-manager: Check that your boot device is configured properly Boot into Windows Recovery Environment (WinRE) and perform a "Startup Repair". Boot Manager is compressed If by accident having compressed the entire boot partition, then Vista will display the following error: BOOTMGR is compressed. Press Ctrl+Alt+Del to restart OR maybe try this first. Check points for fixing compressed boot-manager: Boot into Windows Recovery Environment (WinRE) and perform a "Startup Repair". If the above doesn't solve the problem then boot into WinRE again, but when selecting the Vista-installation, then press "Load Drivers" (Instead of "Next") and use the mini Windows Explorer to right-click the boot-drive and deselect "Compress this Drive" and choose Apply to sub-folders and files. If that also fails then boot into WinRE again, and go to the "Command Prompt" and execute these commands: compact /U C:\bootmgr compact /U C:\ntldr If you for some strange reason have lost your Vista DVD, then you can also use a Windows 2000 / XP install CD and enter the recovery console instead and execute the following commands: attrib -c c:\bootmgr attrib -c c:\ntldr


Try start up in Safe Mode press F8. Choose Safe Mode, when at the choice window, to select either Safe Mode Desktop, OR System Restore, chooses system restore and choose a time before you had the "Problem" and follow instructions. This should get you back.

Hit F8 a few times while your computer starts to boot, a boot selection screen should come up. Try selecting "Last Known Good Configuration" and see if you can boot up without running the repair install.

Did you enable USB Legacy support in the bios?, if not, that should fixit