Hi Weffley,
Thank you for posting your query in Microsoft Community forums.
From the issue description, I see that Samsung NP500P4C-S05AE Keyboard is not working on Windows 8.
I can imagine the inconvenience you have experienced. We are here to help and guide you in the right direction.
To provide the appropriate resolution I would need more information from your end.
1. What is the correct model number of the Laptop?
2. What exactly happens when you try to use keyboard?
3. Did you make any recent hardware or software changes prior to this issue?
This issue may occur due to corrupted or incompatible drivers, missing updates, incorrect device settings or hardware problems.
Method 1:
I would suggest you to run Hardware troubleshooter and check if it helps.
Follow these steps to run hardware troubleshooter.
a. Press windows key + W and type
troubleshooting and press Enter.
b. Press the down arrow key to select
view all and press Enter.
c. Press the down arrow key to select
Hardware and devices Troubleshooter and then press Enter.
d. Press Enter once again and run the
hardware and devices troubleshooter.
Method 2:
If the issue persists, I would suggest you to install latest driver for the keyboard from the manufacturer website and check if it helps.
Refer to the link:
http://www.samsung.com/us/support/downloads
Let us know the status of the issue after performing the troubleshooting steps.
If you need any further assistance or information
regarding the issue with keyboard, I will be glad to help you. We, at Microsoft strive towards excellence.
