Registry Editor is a useful utility in Windows which allows users to easily change advanced Windows settings by altering registry keys present in a hierarchical arrangement called the Windows Registry. Despite being such a powerful tool, Registry Editor is not totally error-proof.
When changing the drive letters on your disc drives you can only change the drive to any drive letter after the hard drive. For example, because your hard drive is C: you can only change your CD drive to D: through Z:. If you have multiple hard drives or partitions and your last drive letter is F: you can only change your CD drive to G: through Z:.
A partition on a hard drive can be deleted as it is not currently in use. For example, if Windows is installed on the partition you want to delete, you will not be able to, as you are logged into Windows. To delete a partition on a hard drive, follow the steps below.
Warning: Deleting a partition will permanently erase any data that is presently stored on it.
So you’ve decided to take the Windows 7 plunge, having heard all the paeans to Redmond’s latest operating system. For many users, setting it up will be a simple case of popping in the installation disc and following the prompts. But there are a few steps you should take and decisions you need to make before and during the process.