If your ‘bootmgr’ file is compressed, Windows will not boot up. The error message also can be raised by a corrupted or missing MBR, Boot Sector or BCD.Ĭompression of an entire driver is a way to save hard drive space, but some software, which claims to boost performance, may cause errors by compressing the whole C: drive. This error message may caused by several reasons, not only when the file ‘bootmbr’ is compressed. It replaces Ntldr, which is the boot loader in Windows XP. When this message appears you will be given a limited option to reboot your computer that does not boot Windows normally.īOOTMGR is the abbreviation of Boot Manage(r), which is an important system file of Windows Vista, Windows 7, Windows 8 and Windows Server 2008. The error message, 'BOOTMGR is compressed Press Ctrl+Alt+Del to restart', may appear when you start your Windows 7, 8 based computer. Lazesoft Recovery Suite is a very easy to use ALL-IN-ONE boot disk that repair your crashed Windows, recover data from deleted, formatted, damaged partition, clone or backup disk, reset your forgotten Windows password.ĭownload | Order Now! How to fix a 'Bootmgr is compressed' error

Windows 7 bootmgr