[Jaston]

When turning my computer on it comes up with "BOOTMGR is compressed press Ctrl Alt and Detete to restart."

I compressed all of my files on my computer to save disk space as I barely had any!

I have tried going into the setup however I have very limited knowledge of the DOS.

If you could please tell me what I have to do that would be great!

Thank you in advance

[Jaston]

I also can't boot my computer in safe mode either! Please help!!!

[Jaston]

someone must know how to get out of this problem!??!

I have tried Re-installing Vista however that doesn't work I have also tried using system restore also!

please someone help!!!!!!!!!

[natcom]

hey man try this if you have not fix your problem http://auscoder.com/2007-05-18/resto...ootloader.html repair the boot loader if that those not work sound like you need a new drive

[Elvandil]

Here is a quote from Microsoft regarding the performance impacts of NTFS compression:

"NTFS compression might cause performance degradation because a compressed NTFS file is decompressed, copied, and then recompressed as a new file, even when copied on the same computer. Similarly, on network transfers, the file is decompressed, which affects bandwidth as well as speed."

Compressing a whole drive is a big mistake. If you were that desperate for space, you needed to move things or get a new drive.

How did you perform the whole drive compression?

You can do it from a command-line with UBCD:

COMPACT: Displays or alters the compression of files on NTFS partitions.

COMPACT [/C | /U] [/S[:dir]] [/A] [/i] [/F] [/Q] [filename [...]]

/C Compresses the specified files. Directories will be marked so that files added afterward will be compressed.

/U Uncompresses the specified files. Directories will be marked so that files added afterward will not be compressed.

/S Performs the specified operation on files in the given directory and all subdirectories. Default "dir" is the current directory.

/A Displays files with the hidden or system attributes. These files are omitted by default.

/I Continues performing the specified operation even after errors have occurred. By default, COMPACT stops when an error is encountered.

/F Forces the compress operation on all specified files, even those which are already compressed. Already-compressed files are skipped by default.

/Q Reports only the most essential information.

filename Specifies a pattern, file, or directory.

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The only way I can think to undo this is to uncompress all the files from another installation or from a bootable OS like UBCD4Win. You could see if the "compact" command is available from the Vista recovery environment. I am not sure that UBCD4Win has a program or functionality to uncompress a drive, but you can load:

Servant Salamander can undo the compression, though I'm not sure about the free version 1.52.

NTFS Ratio is a free context menu add-on that will compress/uncompress on NTFS volumes.

And NTFS File Decompressor can undo it, but it costs money.