Windows 7 Boot Error: ‘some file’ is compressed. Press CTRL+ALT+DEL to restart

Compressed files causing errors when starting Windows 7

Note: This article relates to Windows 7 only. If you are using Windows XP please see the article: NTLDR is compressed. Press CTRL+ALT+DEL to restart

Windows 7 Logo filename is compressed windows 7 error

After switching on your computer or after restarting Windows 7 you receive the error ‘filename’ is compressed. Press CTRL+ALT+DEL to restart on a black screen with white writing when trying to boot into Windows.

The ‘filename’ is different on different systems but the following have been reported:

  • BootMgr is compressed.  Press CTRL+ALT+DEL to restart.
  • QXHDK is compressed.  Press CTRL+ALT+DEL to restart.
  • NTLDR is compressed.  Press CTRL+ALT+DEL to restart.
  • DFJEU is compressed.  Press CTRL+ALT+DEL to restart.
  • VUFEI is compressed.  Press CTRL+ALT+DEL to restart.
  • DGKAR is compressed.  Press CTRL+ALT+DEL to restart.

Explanation

A bug in Windows 7 file compression is causing this problem.  We can solve the problem by decompressing the hard disk as shown below.

Solution

Decompress using Windows System Recovery menu

1.   Boot to the Windows System Recovery Options screen.  If you don’t know how to do that the see this article: Windows 7 or Vista System Recovery Options
2.   On the System Recovery Options screen click LOAD DRIVERS button.

Windows 7 System Recovery Options Screen Load Drivers

3.   On the left, click Computer.  You should now see your Local Disk C: on the right.
4.   Right click Local Disk C: and click Properties.
5.   At the bottom of the properties box, deselect the box that says Compress this drive to save space.
6.   Another window will pop up asking you to confirm the attribute change. (the windows might get a bit messy so you’ll just have to move them around the screen so you can see them properly)
7.   Select Apply changes to drive C:, subfolder and files and click OK
8.   Now I would suggest waiting.  You will not see a progress dialog as it uncompresses the drive so give it a few minutes until your hard disk stops showing activity.
9.   When finished, cancel all remaining dialog boxes and restart the computer.

NTLDR is missing. Press CTRL+ALT+DEL to restart

NTLDR is missingmissingNTLDR is missing

After switching on your computer or after restarting Windows XP you receive an ‘NTLDR is missing‘ error message and cannot get into Windows.

You will usually have no choice but to switch off the computer or restart by pressing CTRL+ALT+DEL.

This article describes several possible solutions to solving the NTLDR is missing error and get your Windows XP PC up & running again.

Symptoms

You receive the NTLDR error message when starting or rebooting your computer:

NTLDR is missing.  Press CTRL+ALT+DEL to restart.

Explanation

The NTLDR is missing error message is usually caused when the following conditions exist although there are other causes of NTLDR errors:

  1. The primary partition is formatted with the FAT32 filesytem
  2. The computer starts by using INT-13 extensions
  3. The heads value in the FAT32 BIOS Parameter Block (BPB) does not match that of the physical disk drive

NTLDR Solutions

Step 1 – Remove non bootable media

  • Remove any floppy disks, CD’s or USB sticks from your computer and restart.
  • If NTLDR is missing error appears again, proceed to step 2

Step 2 – Copy new system files

    1. Boot the computer using a Windows 95/98/ME startup boot diskette or bootable CD – If you haven’t get one then use one of these Windows Recovery Discs
    2. Backup MSDOS.SYS by issuing the following commands at the command prompt (pressing ENTER after each command):

      attrib -h -r -s c:\msdos.sys

      rename msdos.sys msdos.old

    3. Now copy new system files across by issuing the following command and pressing ENTER at the command prompt:

sys c:

Note: Sometimes the above command fails if you are using a Windows ME boot disk. If it does following solution ERROR: Cannot find the system file in the standard locations on drive C

  1. Rename MSDOS.OLD back to MSDOS.SYS by issuing the following commands and pressing ENTER after each at the command prompt:

    attrib -h -r -s c:\msdos.sys

    copy msdos.old msdos.sys

  2. Remove the boot disk/CD and insert your Windows XP CD
  3. Restart the computer by pressing CTRL+ALT+DEL
  4. Ensure you boot the system from the CD.  The system will then boot into the Windows XP Setup.
  5. At the welcome screen press ‘R’ to enter the Recovery Console
  6. At the recovery console, select your Windows XP installation and enter your Administrator password if requested
  7. At the command prompt issue the following commands and press ENTER after each command:

    fixboot

    fixmbr

  8. Remove your Windows XP CD and restart the computer
  9. If the NTLDR is missing error appears again after reboot, proceed to Step 3 below.

Step 3 – Windows Repair

  1. After Step 2 above, it is sometimes necessary to run or re-run the Windows XP Setup repair process
  2. If step 2 did not solve you issue re-insert your Windows XP CD and run Windows Setup again
  3. If NTLDR is missing error appears again, proceed to Step 4 below.

Step 4 – Download & Run BCUPDATE2

Occasionally this NTLDR error is caused by too many files in the root folder and an issue with an out of date windows version.


BCUPDATE2 is an official Microsoft fix for the NTLDR problem but is difficult to find and cannot be downloaded directly from Microsoft without first contacting support.

This can be solved by downloading and running BCUPDATE2.EXE as follows:

    1. Download BCUPDATE2.EXE by clicking here (this will open in a new window/tab)
    2. Copy BCUPDATE2.EXE into the root folder of a Windows 95/98/ME boot diskette or CD
    3. Boot the computer using the boot diskette or bootable CD
    4. At the command prompt issue the following command and press ENTER:

bcupdate2.exe C: /F

  1. When prompted to update the volume press Y
  2. After you receive a confirmation message, remove your bootable diskette or CD and restart your computer.

NTLDR is compressed. Press CTRL+ALT+DEL to restart

Microsoft Windows XP Logo

Compressed NTLDR bootloader causing issues when starting Windows

After switching on your computer or after restarting Windows XP you receive the error NTLDR is compressed. Press CTRL+ALT+DEL to restart on a black screen with white writing when trying to boot into Windows.

If you’re looking for the other NTLDR problem, NTLDR is missing error then take a look at this article instead.

Symptoms

  • Error appears after performing a System Restore using the Destructive Option
  • You receive the following the following error message when starting or rebooting your computer:
NTLDR is compressed.  Press CTRL+ALT+DEL to restart.

Explanation

The above error is appearing due to a problem with the attributes of the ‘ntldr’ Windows boot loader file.  By decompressing this file we can solve the problem.

Solutions

Decompress by using ‘attrib’ command on NTLDR

The NTLDR file must be altered in order to clear this error and correctly boot.

  1. Boot into the Recovery Console (Need help with this? See this article: Three Ways To Get Into Recovery Console)
  2. When the console asks you to choose a Windows install to work with, enter 1 and press Enter
  3. When prompted, enter your Administrator password
  4. At the command prompt, enter the following commands, pressing Enter after each:
  5. cd \
    attrib -c c:\ntldr 
    exit

  6. Restart your computer and the error should be gone – you can restart by typing Exit and pressing Enter.

NTLDR is missing. Press CTRL+ALT+DEL to restart

NTLDR is missing Press CTRL+ALT+DEL to restart

Description

After switching on your computer or after restarting Windows XP you receive an error message and cannot get into Windows.

 

You will usually have no choice but to switch off the computer or restart by pressing CTRL+ALT+DEL.

 

This article describes several possible solutions to get your Windows XP up & running again.

 

Symptoms

You receive the following error message when starting or rebooting your computer:

NTLDR is missing.  Press CTRL+ALT+DEL to restart.

Explanation

The above error messages are usually caused when the following conditions exist although there are other causes:

  1. The primary partition is formatted with the FAT32 filesytem
  2. The computer starts by using INT-13 extensions
  3. The heads value in the FAT32 BIOS Parameter Block (BPB) does not match that of the physical disk drive

 

Solutions

Step 1 – Remove non bootable media

  • Remove any floppy disks, CD’s or USB sticks from your computer and restart.

 

Step 2 – Copy new system files

  1. Boot the computer using a Windows 95/98/ME startup boot diskette or bootable CD
  2. Backup MSDOS.SYS by issuing the following commands at the command prompt (pressing ENTER after each command):

    attrib -h -r -s c:\msdos.sys

    rename msdos.sys msdos.old

     

  3. Now copy new system files across by issuing the following command and pressing ENTER at the command prompt:
  4.  

    sys c:

    A helpful tip. Sometimes the above command fails if you are using a Windows ME boot disk. If it does following solution ERROR: Cannot find the system file in the standard locations on drive C

     

  5. Rename MSDOS.OLD back to MSDOS.SYS by issuing the following command and pressing ENTER at the command prompt:

     

    attrib -h -r -s c:\msdos.sys

     

    copy msdos.old msdos.sys

     

     

  6. Remove the boot disk/CD and insert your Windows XP CD
  7. Restart the computer by pressing CTRL-ALT-DEL the system will boot into the Windows XP Setup.
  8. At the welcome screen press ‘R’ to enter the Recovery Console
  9. At the recovery console, select your Windows XP installation and enter your Administrator password if requested
  10. At the command prompt issue the following commands and press ENTER after each command:

    fixboot

    fixmbr

     

  11. Remove your Windows XP CD and restart the computer

 

Step 3 – Windows Repair

  1. After Step 2 above, it is sometimes necessary to run or re-run the Windows XP Setup repair process
  2. If step 2 did not solve you issue re-insert your Windows XP CD and run Windows Setup again

 

Step 4 – Download & Run BCUPDATE2

 

Occasionally this error is caused by too many files in the root folder and an issue with an out of date windows version. This can be solved by downloading and running BCUPDATE2.EXE

 

  1. Download BCUPDATE2.EXE by clicking here (this will open in a new window/tab)
  2. Copy BCUPDATE2.EXE into the root folder of a Windows 95/98/ME boot diskette or CD
  3. Boot the computer using the boot diskette or bootable CD
  4. At the command prompt issue the following command and press ENTER:
  5. bcupdate2.exe C: /F

    A helpful tip.If you receive the error ‘bcupdate2 is not recognized as an internal or external command, operable program or batch file’ then you have either not copied the bcupdate2.exe file correctly to your boot diskette or CD or you have copied into a folder inside the disk or CD

  6. When prompted to update the volume press Y
  7. After you receive a confirmation message, remove your bootable diskette or CD and restart your computer.