What is the difference between a 5 Pack and a Single?
A 5 Pack is for 5 computers or 5 users, and a Single is for 1 computer or 1 user. IMPORTANT TECHINCAL NOTE ABOUT OEM AND DSP SOFTWARE: OEM and DSP operating system software from Microsoft cannot be installed as an Upgrade, unless the old hard drive has been formatted or you are installing a new formatted hard drive. If you format your existing hard drive in order to install your new operating system, you cannot use the original manufacturer’s recovery disk before loading the new operating system. You can load the new operating system without using the original manufacturer’s recovery disk. Most or all of the component drivers should be located on the new Windows CD and therefore your recovery disk (if you have one) is not required. CLICK HERE for formatting and partitioning hard drive information. OEM and DSP non-operating system software (such as Microsoft Office, Works Suite, WordPerfect, etc.) also cannot be installed over a previous version as an Upgrade. Installation of newer vers