Merge partitions

*backup your data on the volume that you will be deleting

1. Right Click on Computer > click Manage

2. On the left Column under Storage, click on Disk Management

3. Right click the partition that you want to remove, select "delete volume"

4. Right click on the same partition and select "delete partition"

5. Right click on your MAIN partition and select "Extend"

6. Follow the wizard, don't change any settings, just click "NEXT" or "OK"


source:http://social.technet.microsoft.com/Forums/en-US/w7itproperf/thread/19b60bc3-86a2-45d1-b2b5-16f9f3671a2b/