You cannot legally download and reproduce a company's logo without a license purchased or acquired from the company, explains the Graphic Artists Guild. You can use a logo after significantly changing the graphic to the point that it is not similar to the original.
A logo deemed fair to use and part of the public domain is available for download without the risk of copyright infringement, according to the Graphic Artists Guild.
Individuals who obtain licenses to use company logos still have restrictions in its use based on the contractual agreement between the company and the user, notes the Microsoft Corporation. For example, a license to use the Microsoft logo must accompany references to a partnership with the corporation or the sale of its products.