Windows 7 Shrink volume in c drive to partition the drive.

Hi,

I would suggest you to try these steps and check if it helps.

Method 1:

Perform check disk on C drive to check if there are any harddrive errors

a.       Click on start and then type cmd.exe in the start search and press enter.

b.      Right click on cmd.exe and click on Run as administrator.

c.       In the command prompt, type the following command and press enter.

Chkdsk /f

            Note: You may be prompted with a yes/No question. Type yes and hit enter.

d.      Restart the computer so that the check disk initiates.  It will take about half an hour to complete the error checking process. Do not restart the computer when the check disk in progress.

Note: While performing chkdsk on the hard drive if any bad sectors are found on the hard drive when chkdsk tries to repair that sector if any data available on that might be lost

Method 2:  Turn of the system protection on c drive.

a.       Click on start.

b.      Right click on computer and click on properties.

c.       Click on Advanced system settings on the left pane

d.      Click on system protection tab.

e.       In the protection settings, click on C drive and then select Configure.

f.       Then place a check mark on Turn off system protection.

g.      Press ok and restart the computer.

Once done, try to shrink the volume C and check.

For reference:

Easily Shrink a Volume on a Windows 7 Disk

http://technet.microsoft.com/en-us/magazine/gg309169.aspx

Method 3:  Run a virus scan on the computer to make sure it is virus free

http://www.microsoft.com/security/scanner/en-us/default.aspx

Safety Scanner Disclaimer: There could be a loss of data while performing a scan using Microsoft safety scanner to eliminate viruses if any.

 Hope it helps.