Why cant I shrink Drive C more than 16GB?

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laungst said:

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.

kado897 said:

laungst said:

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.

Kaktussoft said:

kado897 said:

laungst said:

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.

DeaconFrost said:

laungst said:

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.