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Windows 7: Why cant I shrink Drive C more than 16GB?

17 Jul 2012   #1
laungst

Windows 7 Home Premium 64bit
 
 
Why cant I shrink Drive C more than 16GB?

I want to shrink my Drive C by 100GB~ so I can create a new partition and install the pre-release of Windows 8.

My drive C is 906 GB total and it has around 55% (Surprisingly exactly 500GB) of free space.

I go into "Computer Management" and then go into the "Disk Management" under the "Storage" tab. I right click on "(C" and click on "Shrink Volume". After it finishes "Querying Volume for Available Shrink Space" it says the following

"Total size before shrink in MB: 928267 (906GB)
Size of available shrink space in MB: 16814 (17GB)
Enter the amount of space to shrink in MB: (Gives me box to type in)
Total size after shrink in MB: (Goes up and down with above box)
You cannot shrink a volume beyond the point where any unmovable files are located. See the "defrag" event in the Application log for detailed information about the operation when it has completed."

In the "Enter the amount of space to shrink in MB" box, it wont let me go over 16814 MB- About 17GB, even though I have EXACTLY 500GB free. If I can, how can I fix this?

Note: The first thing I did when I saw this was Defragment my harddrive. Nothing changed. The numbers were exactly the same.

Thanks for your help




Attached Thumbnails
-shrinking.png  
My System SpecsSystem Spec
.
17 Jul 2012   #2
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

My System SpecsSystem Spec
17 Jul 2012   #3
kado897

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bit Service Pack 1
 
 

Quote   Quote: Originally Posted by laungst View Post
I want to shrink my Drive C by 100GB~ so I can create a new partition and install the pre-release of Windows 8.

My drive C is 906 GB total and it has around 55% (Surprisingly exactly 500GB) of free space.

I go into "Computer Management" and then go into the "Disk Management" under the "Storage" tab. I right click on "(C" and click on "Shrink Volume". After it finishes "Querying Volume for Available Shrink Space" it says the following

"Total size before shrink in MB: 928267 (906GB)
Size of available shrink space in MB: 16814 (17GB)
Enter the amount of space to shrink in MB: (Gives me box to type in)
Total size after shrink in MB: (Goes up and down with above box)
You cannot shrink a volume beyond the point where any unmovable files are located. See the "defrag" event in the Application log for detailed information about the operation when it has completed."

In the "Enter the amount of space to shrink in MB" box, it wont let me go over 16814 MB- About 17GB, even though I have EXACTLY 500GB free. If I can, how can I fix this?

Note: The first thing I did when I saw this was Defragment my harddrive. Nothing changed. The numbers were exactly the same.

Thanks for your help
The reason is that windows has placed files it considers unmovable near the end of the partition. Do as kactussoft recommends and use Partition Wizard. You may need to use the bootable version to accomplish what you need if the files are in use.
My System SpecsSystem Spec
.

17 Jul 2012   #4
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by kado897 View Post
Quote   Quote: Originally Posted by laungst View Post
I want to shrink my Drive C by 100GB~ so I can create a new partition and install the pre-release of Windows 8.

My drive C is 906 GB total and it has around 55% (Surprisingly exactly 500GB) of free space.

I go into "Computer Management" and then go into the "Disk Management" under the "Storage" tab. I right click on "(C" and click on "Shrink Volume". After it finishes "Querying Volume for Available Shrink Space" it says the following

"Total size before shrink in MB: 928267 (906GB)
Size of available shrink space in MB: 16814 (17GB)
Enter the amount of space to shrink in MB: (Gives me box to type in)
Total size after shrink in MB: (Goes up and down with above box)
You cannot shrink a volume beyond the point where any unmovable files are located. See the "defrag" event in the Application log for detailed information about the operation when it has completed."

In the "Enter the amount of space to shrink in MB" box, it wont let me go over 16814 MB- About 17GB, even though I have EXACTLY 500GB free. If I can, how can I fix this?

Note: The first thing I did when I saw this was Defragment my harddrive. Nothing changed. The numbers were exactly the same.

Thanks for your help
The reason is that windows has placed files it considers unmovable near the end of the partition. Do as kactussoft recommends and use Partition Wizard. You may need to use the bootable version to accomplish what you need if the files are in use.
Bootable version not needed!! It does the task on reboot.
My System SpecsSystem Spec
17 Jul 2012   #5
kado897

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bit Service Pack 1
 
 

Quote   Quote: Originally Posted by Kaktussoft View Post
Quote   Quote: Originally Posted by kado897 View Post
Quote   Quote: Originally Posted by laungst View Post
I want to shrink my Drive C by 100GB~ so I can create a new partition and install the pre-release of Windows 8.

My drive C is 906 GB total and it has around 55% (Surprisingly exactly 500GB) of free space.

I go into "Computer Management" and then go into the "Disk Management" under the "Storage" tab. I right click on "(C" and click on "Shrink Volume". After it finishes "Querying Volume for Available Shrink Space" it says the following

"Total size before shrink in MB: 928267 (906GB)
Size of available shrink space in MB: 16814 (17GB)
Enter the amount of space to shrink in MB: (Gives me box to type in)
Total size after shrink in MB: (Goes up and down with above box)
You cannot shrink a volume beyond the point where any unmovable files are located. See the "defrag" event in the Application log for detailed information about the operation when it has completed."

In the "Enter the amount of space to shrink in MB" box, it wont let me go over 16814 MB- About 17GB, even though I have EXACTLY 500GB free. If I can, how can I fix this?

Note: The first thing I did when I saw this was Defragment my harddrive. Nothing changed. The numbers were exactly the same.

Thanks for your help
The reason is that windows has placed files it considers unmovable near the end of the partition. Do as kactussoft recommends and use Partition Wizard. You may need to use the bootable version to accomplish what you need if the files are in use.
Bootable version not needed!! It does the task on reboot.
Ah thanks. That's good to know.
My System SpecsSystem Spec
17 Jul 2012   #6
DeaconFrost

Windows 7 Ultimate x64 SP1
 
 

Quote   Quote: Originally Posted by laungst View Post
I want to shrink my Drive C by 100GB~ so I can create a new partition and install the pre-release of Windows 8.
Given your system specs...save yourself a lot of time and grief. Virtualize Windows 8.
Quote   Quote: Originally Posted by livinghp View Post
I have scanned this site, all recommend partition wizard, not spamming??
against your own policy i think.
I'm not exactly sure what you mean. However, I can tell you, we recommend Partition Wizard because it's a great product and you can't beat the price (free).
My System SpecsSystem Spec
17 Jul 2012   #7
kado897

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bit Service Pack 1
 
 

Quote   Quote: Originally Posted by DeaconFrost View Post
Quote   Quote: Originally Posted by laungst View Post
I want to shrink my Drive C by 100GB~ so I can create a new partition and install the pre-release of Windows 8.
Given your system specs...save yourself a lot of time and grief. Virtualize Windows 8.
There are problems running Windows 8 RP in VirtualBox but they can be overcome and it runs well.
My System SpecsSystem Spec
17 Jul 2012   #8
gregrocker

 

You most certainly want to use the Partition Wizard bootable CD.

All other disk managers besides Disk Management and PW CD can and will fail! PW installed version can also fail and has before when Users are not advised or ignore using the bootable CD.

Partition Wizard Move/Resize Partition Video Help.
My System SpecsSystem Spec
17 Jul 2012   #9
AddRAM

Windows 7 Professional x64 Service Pack 1
 
 

Partition Wizard works perfectly. By the way, you will hate Windows 8. It`s not worth the effort.
My System SpecsSystem Spec
17 Jul 2012   #10
laungst

Windows 7 Home Premium 64bit
 
 

Okay thanks everybody. I'm going to try the Partition Wizard/ Partition Wizard Bootable CD. But first I'm backing up my computer, I have not done it in a while and I don't want to lose anything. Ill post my results when everything's done.
My System SpecsSystem Spec
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 Why cant I shrink Drive C more than 16GB?




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