How to easily merge two partitions (C and D drive) in Windows Vista

Here are simple steps on how you can easily merge two partitions (C and D drive) in Windows Vista.

Follow the simple steps below:

• Click on Start in Vista.
  
• Go to Control Pannel (Follow steps pre-fixed 'A' for "Control Panel Home view" / 'B' for "Classic View").
• A: Click "System And Maintenance" (in green).
• B: Click Administrative Tools (the one with a big gear icon).
• A: Under Administrative Tools, click "Create and format disk partitions" (If a UAC prompt apears, click continue).
• B: Click "Computer management" (If a UAC prompt apears, click continue), Next click "Storage", then "Disk Management".
• On the list provided, right-click the letter drive you want to rid yourself off (say D:) and choose the option "Delete Volume".
• If you have done it right, a black area should appear within your entire disk space.
• Finally, right-click your drive you want to add the space to (say C:) and choose "Extend Volume" (by default, the wizard will choose ALL unallocated space to add to your Vista partition, but you can change that if you'd like.)

Hope that helped. Do let me know if you run into any issues with the steps.