By skyforbes 
When you are trying to activate Windows 8, then it might be possible that you encounter “Error Code: 0xC004F074” with the 25 digit product key. The error usually appears due to a number of reasons including the incomplete and incorrect installation of Windows 8 operating system and many more. In order to fix the error code, we have mentioned the steps with complete guidance. Besides this, you can also contact us at our Windows 8 Help Number.
· Here you need to go to the run command by pressing Windows key + R and type “cmd”
· In the next step, type slmgr.vbs -ipk xxxxx-xxxxx-(25 digit product key) and press enter in the command prompt
· Further, you are required to type slmgr.vbs -to and “Enter”
· If the error still persists, open the command prompt again and type “Slui 3” and then enter your 25 digit product key in the popped out Window
· Here simply click “Activate” and then open cmd in Administrator mode and run the command as “SFC /scannow” and “Press Enter”
· At last, simply restart your computer device and activate Windows 8 again which will work perfectly
Get in touch with our customer service in order to have more support and guidance from our certified engineers and professionals who are capable enough to handle and manage all sorts of technical issues and glitches. You can connect us by calling us at our toll-free Windows 8 Technical Support Number (1–800–439–2178). Here you will have support for a call under all possible solutions and efforts.
View-Source: https://goo.gl/PRK9V3