Use the Bootrec.exe tool in the Windows Recovery Environment to troubleshoot and repair startup issues in Windows Vista or Windows 7. Might prompt you to make choices as it tries to fix the problem, and if necessary, it might restart your computer as it makes repairs.

Please ensure that the DVD-ROM is the first booting device.ġ) Please insert the Windows 7 DVD and reboot the computer.Ģ) When we are prompted to press a key to boot from the DVD, please press Enterģ) Choose your language settings, and then click Next.ĥ) Select the operating system you want to repair, and then click Next.Ħ) On the System Recovery Options menu, click 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.You could try to use the system startup repair form System Recovery Options:ġ. Startup Repair using Windows 7 installation disc.

Press Ctrl+Alt+Del to restartĬheck points for fixing compressed boot-manager: If by accident having compressed the entire boot partition, then Vista will display the following error:īOOTMGR is compressed.

If that also fails then boot into WinRE again, and go to the “Command Prompt” and execute this command:.

Boot into Windows Recovery Environment (WinRE) and perform a “Startup Repair”.

Check that your boot device is configured properly.

The Windows Boot Configuration Data file is missing required informationĬheck points for fixing missing boot-manager: If the boot partition no longer can be found, then Vista will display the following error:īOOTMGR is missing. If your computer cannot boot from a DVD, then you can use another computer to Create a Windows Vista/7 Recovery disk on an USB stick.

If you don’t have the install DVD, then go ask friends/family/work whether they have a disc you can borrow. Windows Vista includes a new Boot Manager (BootMgr) that replaces the old NT Loader (Ntldr).

Boot manager is missing windows 7