Hard Disk upgrading
Before upgrading your hard disk it's best to do a complete disk checkup including disk scan, de-fragmentation, etc. If you happen to be an average user and need more storage you can add an additional drive to the existing one. Before an upgrade, be sure to back up your files. Whenever you add or upgrade a hard drive to a system, mostly the new drive should be installed and configured to the boot drive.
Generally the new hard disk will be bigger and faster than the one your PC currently uses. Hence it is better to make the new drive your primary drive where the operating system and applications resides. You can attach the old drive as a secondary hard disk and use it for archives and less frequently accessed data.
