The best placement to buy computer software is from official websites and online stores of the computer developers. Companies such as Microsoft, Adobe and others offer protected environments in which users can buy download and install software substitutes directly. This guarantees integrity, the most recent releases and direct line to customer service. Most software developers allow other agent resellers to release their merchandise. Such resellers often provide understandable prices, promotions and bundles. It requires confirming the authenticity of the reseller and ensuring that they are an authorized distributor to prevent purchasing counterfeit or outdated software. Still, there is a ready physical option for purchasing computer software. In Electronics stores, office supply chains and speciality computer shops one can find software for sale in disks or USB drives.