När du tog ut USB mottagaren, avinstallerades den antagligen automatiskt och nu när du har en ny, måste den installeras om, så att du kan se tangentbord och mus..
The following procedure might require you to restart your computer.
If the driver for your device is damaged or corrupted, you can try to solve the problem by removing and then reinstalling the driver.To remove and reinstall the driver
Disconnect the device from the USB port. (din USB mottagare)
Turn off the power for the device, if it has a separate power supply.
Open Device Manager. (enhetshanteraren alltså)
Double-click the appropriate device category.
Right-click your USB device, and then click Uninstall.If your device is not listed, this means that it was uninstalled automatically when you disconnected the device. Continue to the next step.
Restart your computer. (starta om dator)
Turn the power back on for the device, if necessary, and then plug the device into the USB port.Your computer will detect the device and reinstall the drivers for it.
NoteTo open Device Manager, click Start, click Control Panel, click Performance and Maintenance, and then click System. In the System Properties dialog box, click the Hardware tab, and then click Device Manager.
If your computer doesn't reinstall the driver automatically, use the Add Hardware Wizard to reinstall the driver.
To reinstall your driver using the Add Hardware Wizard:
Start the Add Hardware Wizard in Control Panel. (lägga till maskinvara i kontrollpanelen)
Click Next, and wait for Windows to search for Plug and Play hardware.Your USB device will be installed automatically.
Note. To open the Add Hardware Wizard, click Start, click Control Panel, and then click Printers and Other Hardware. Under See Also, click Add Hardware.
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Källa: Microsoft Help & Supportcenter