The Windows Vista System Restore feature will make sure that software installations, drivers, and other updates can be rolled back. The only price to this feature is some disk usage. If you want to disable System restore, which is a bad idea, it's really pretty simple.

Just to make sure you understand… Windows Vista has just been released. There are bugs. Things will crash. Disabling System Restore will keep you from rolling back changes.

So, you've read this far. Now let's disable it. Type system into the start menu search box, and pick the 4th item down, just labeled "System".  (You could also right-click the computer icon and choose properties)

Now click the System protection link:

You'll see the checkboxes next to your different disks:

Once you uncheck the drive, click the "Turn System Restore Off" button.

Now you've got system restore disabled. Living on the edge, eh?

Because programs such as Partition Magic don’t work on Windows Vista, some of you may be wondering how to resize partitions without losing any data. The good news is that you probably won’t be needing those programs because Windows Vista can manage your partition resizing.

To resize a partition with Windows Vista, follow these steps:

Be sure to back up any valuable information, because there is a slight chance that data can be lost when dealing with partitions.

1) Click on the Start menu

2) Right click on Computer and click on Manage

3) You may get a User Account Control dialog here; just click Continue

4) In the left pane, open up the Storage category and click on Disk Management

5) Here, you will find your partitions for your disks. Right click on the partition you’d like to modify.

6) Click on Extend Volume or Shrink Volume to extend or shrink the selected partition.

Note : Do it on your own risk