OEM Windows is the windows OS which is pre-installed when you purchase the product without any additional cost.OEM stands for Original Equipment Manufacturer.
There are two types of Windows OS in the market.
- OEM (Original Equipment Manufacturer)
Functional wise both OEM version and retails versions are same. While, OEM windows are cheaper than the retail ones. Also user cannot copy the OS to any other systems.It is pre-activated and does not require KEY to activate as like the retail ones.
OEM softwares can be used for personal and commercial use.OEM (Original Equipment Manufacturer) version of Windows are mostly used by large computer manufactures.
Microsoft allows any online retailers or small computer shops as well to sell Original Equipment Manufacturer System Builder software to its customers.
Online retailers can install OEM for their customers by using the OEM Preinstallation Kit and then resell the system.OEM softwares can be used by individuals who build their own PCs as well.
Microsoft does not provide technical support or on call support for OEM type of Windows. The support for this needs to be provided from the computer manufacturers.
Users can refer to supporting documents in Microsoft website for the installation guides and other details.
You will have to purchase a retail version of Windows, if anything happens to your hardware. Users cannot re-install the same OEM version of windows. While If we are purchasing the retail version of windows, we can re-install the OS using same KEY.
So In short, you can try Original Equipment Manufacturer Windows Operating system for cost saving as there is no much difference between the OEM ones and retail ones.