Vista - BootMGR Compressed Message at Boot Fix

**AlexRD**

How to Fix the BootMGR is Compressed Message at Boot

Information

Why does this BootMGR is Compressed message appears at boot?
Well, for some bizzare reason, Vista also compresses the BOOTMGR when you select (check) to Compress this drive to save data space option on the C: drive. When BootMGR is compressed Vista cannot boot from it. This will show you how to fix this boot error.

Here's How:

1. First of all, boot Windows Vista CD. ( By pressing Esc and f8 )
NOTE: If you do have a OEM recovery disc instead of a Vista installation DVD, then you can create a this Vista recovery disc to use to do the steps below with instead.

2. Now you wait while it is loading the files.
NOTE: If it says BootMGR is compressed while booting Windows Vista CD, then go to BIOS, (Normally by pressing f12), load manufactory defaults, and change the Boot Priority, so that the Hard Drive is the first to be loaded.

3. When you boot on Windows Vista CD, select Repair your computer.

4. Select your OS, and click on LOAD DRIVES.

5. A box should now appear. Click on Yes.

6. After that, navigate back to the local drive C: , and right click on it and click on Properties and the Advanced tab.

7. UNCHECK the Compress this Drive To Save Space option, then repeat this again.

8. Do step 6 and 7 for the local drive "X" as well, UNCHECK if it is Checked.

9. Now you double click on the local drive C: , and see if there is anything named with Blue text.

10. If there is, then repeat step 7.
NOTE: After you've done that, you can normally Re-Boot your Computer, and there you go, it is Done. Problem Solved.

**dinesh** · 01-09-2009

Hi AlexRD,
Can you please explain how can we open the Computer or how were you able to navigate to Local Disk C? Is it thru command prompt?
Because after clicking on Repair Your Computer, i get these 5 options,
Startup Repair, System restore, windows memory diags, command prompt and Windows Complete PC restore...

**AlexRD** · 01-10-2009

Quote: Originally Posted by dinesh

Hi AlexRD,
Can you please explain how can we open the Computer or how were you able to navigate to Local Disk C? Is it thru command prompt?
Because after clicking on Repair Your Computer, i get these 5 options,
Startup Repair, System restore, windows memory diags, command prompt and Windows Complete PC restore...

Well, you shouldn't choose the Operating System.
You know that option, LOAD DRIVES, when vista is finding which OS is installed in your computer? That option you should use, load drives, and after that it is going to come a box for you to explore. Then you follow those Steps.

**dinesh** · 01-10-2009

Gotcha.

JACTSHELP · 03-03-2009

I want to say this method does work I learned the hard way by compressing my drive and then being unable to log back in because i would get this message... so dont compress your drive you will get this message as well or atleast thats when I got the message.

01-09-2009
dinesh Windows 7 RTM 64-bit 1,267 posts	Re: BootMGR Compressed Message at Boot Fix Hi AlexRD, Can you please explain how can we open the Computer or how were you able to navigate to Local Disk C? Is it thru command prompt? Because after clicking on Repair Your Computer, i get these 5 options, Startup Repair, System restore, windows memory diags, command prompt and Windows Complete PC restore...
My System Specs

01-10-2009
AlexRD Vista Ultimate Edition x64 133 posts	Re: BootMGR Compressed Message at Boot Fix Quote: Originally Posted by dinesh Hi AlexRD, Can you please explain how can we open the Computer or how were you able to navigate to Local Disk C? Is it thru command prompt? Because after clicking on Repair Your Computer, i get these 5 options, Startup Repair, System restore, windows memory diags, command prompt and Windows Complete PC restore... Well, you shouldn't choose the Operating System. You know that option, LOAD DRIVES, when vista is finding which OS is installed in your computer? That option you should use, load drives, and after that it is going to come a box for you to explore. Then you follow those Steps.
My System Specs

01-10-2009
dinesh Windows 7 RTM 64-bit 1,267 posts	Re: BootMGR Compressed Message at Boot Fix Gotcha.
My System Specs

03-03-2009
JACTSHELP vista 64 and windows 7 64 beta 2 posts	Re: BootMGR Compressed Message at Boot Fix I want to say this method does work I learned the hard way by compressing my drive and then being unable to log back in because i would get this message... so dont compress your drive you will get this message as well or atleast thats when I got the message.
My System Specs

Similar Threads
Tutorial	Category
Vista Won't Boot - BootMGR is compressed :(	General Discussion
Bootmgr is compressed... :(	Vista General
Bootmgr is compressed	General Discussion
Can't boot: "Compressed BOOTMGR".	General Discussion
"BOOTMGR IS COMPRESSED" error message	Vista General