Thank you for writing to Microsoft Communities. From your problem description I understand that you are facing issues with the Microsoft 6000 Bluetooth keyboard. Please correct me I have misunderstood.
Robyn, Please do not worry I will try my best to resolve it.
Please provide us with the additional information by answering few questions mentioned below, this will help us to troubleshoot better.
1. What version of Windows is installed on the computer?
2. Were there any changes made to the computer prior to the issue?
3. Do you face any issue connecting the keyboard to the computer via Bluetooth?
4. Do you receive any error message or error code?
Let’s try these steps and check if it helps.
Note: Assuming that you have Windows 7 installed on the computer.
Method 1: Follow the steps provided in the link and check.
Troubleshoot response failures in wireless keyboard or mouse
Uninstall keyboard driver from device manager, restart the computer and check the issue status
a. Right-click the Computer icon.
b. Select Manage from the menu.
c. Select Device Manager from the System Tools that are listed in the resulting display.
d. Locate the Keyboard.
e. Right click on the device.
f. Click on Uninstall.
g. Restart the computer.