BOOTMGR - can I check that it is uncompressed before restarting

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This topic contains 1 reply, has 2 voices, and was last updated by  Snakefoot 4 years, 3 months ago.

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    Anonymous

    I have just learned (to my cost) that compressing the C: drive is a BAD IDEA, leading to the error message “BOOTMGR is compressed” and a PC that will not start.

    I am worried that I have done the same to my laptop and am therefore afraid to shut down or restart. Is there a way of checking whether my BOOTMGR is currently compressed? And, if it is, is there a way of uncompressing it, so that my laptop can restart normally next time?

    Many thanks in advance for any help you can offer!

    #1811 Reply

    Snakefoot
    Member

    You can check if the “compressed” file attribute is set for bootmgr (and ntldr).

    Open a command prompt (cmd.exe) and type the following command:

    compact /q c:bootmgr

    If it says “1 are compressed and 0 are not compressed.”, then you have compressed your boot manger.

    To uncompress the files then run the following commands within an “Administrator” command prompt:

    compact /u c:bootmgr

    compact /u c:ntldr

    http://smallvoid.com/article/winnt-bootmgr-missing.html

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