In this post, you’ll learn about the Windows System Error ERROR_HTTP_HEADER_ALREADY_EXISTS (0x2F7B)] and the reason why you are receiving the error message
How does this Error in Windows Look like?
Error Code 12155 ERROR_HTTP_HEADER_ALREADY_EXISTS (0x2F7B)]
Why do you receive the System Error Error Code 12155 ERROR_HTTP_HEADER_ALREADY_EXISTS (0x2F7B)] in Windows?
The header could not be added because it already exists.