In this post, you’ll learn about the Windows System Error ERROR_PRODUCT_VERSION (0x666)] and the reason why you are receiving the error message
How does this Error in Windows Look like?
Error Code 1638 ERROR_PRODUCT_VERSION (0x666)]
Why do you receive the System Error Error Code 1638 ERROR_PRODUCT_VERSION (0x666)] in Windows?
Another version of this product is already installed. Installation of this version cannot continue. To configure or remove the existing version of this product use Add/Remove Programs on the Control Panel.