The cost of a Windows operating system depends on the version. Windows 10 Home is priced around $139, while Windows 10 Pro costs approximately $199. Business licenses or bulk purchases may have different pricing. Retailers or online stores often offer discounts on various Windows versions, so it's worth checking for promotions.

Windows prices vary by version. Windows 10 Home is more affordable at around $139 and is suitable for personal use, while Windows 10 Pro, priced at $199, offers additional features for businesses. Bulk or enterprise licenses may offer lower per-unit costs for businesses. Keeping an eye on online promotions or retailer discounts can help you find a better deal when purchasing Windows for personal or professional use.