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.

How To Remove MacDefender

MacDefender is not really a virus but more of a cleverly designed app that’s disguised as a real app.

It’s not malicious in such a way that it will delete your data or even send emails to all your friends.

Whoever designed this is basically trying to fool you into paying money for the application similar to the way you might pay for a ‘pro’ version of any app.

The difference here is – there is no pro version – and there is no infection, virus or anything else wrong with your Mac.

Removing MacDefender is realtively simple too.  As it’s just a normal Mac OS X application, it’s stored in the Applications folder but there are a few other steps you need to take to get rid of it completely.

Here’s how to do it:

Quit MacDefender Completely

1.  Click Spotlight – that’s the magnifying glass in the top right corner.

2.  Type Activity Monitor and press enter to open it when you see it in the list

3.  In Activity Monitor, sort the list of processes by Process Name by clicking the column

4.  Locate MacDefender in the list, click once to select it and then click the Quit Process button

5.  Click Force Quit and if prompted, enter your password.

Delete MacDefender

1.  Click Applications folder on your dock

2.  Locate MacDefender and drag it to the Trash

3.  Empty the trash

Remove Last Traces of MacDefender

1.  Click Spotlight – that’s the magnifying glass in the top right corner.

2.  Type Accounts and press enter to open it when you see it in the list

3.  Select your user profile from the left side

4.  Click Login Items tab on the right side

5.  Locate MacDefender in the list and click the minus sign button

That’s it!  All clean again.