To resolve this issue, simply turn the Num Lock key off. Some laptop keyboards have a stand-alone key press to do this, some require pressing the Fn key along with the Num Lock key to do so. If the Num Lock label has a border around it, it requires the Fn key.
If you would like to disable the Num Lock key from turning on every boot, it can be disabled in the BIOS under Keyboard/Mouse Features. Here are detailed steps:
1. Power on system and press F2 at the Fujitsu logo to enter BIOS setup.
2. Using the arrow keys on the keyboard, select the Advanced menu and press Enter.
3. Select Keyboard/Mouse Features and press Enter.
4. Select Num Lock option and set it to Disabled or Off.
5. Save changes and exit by pressing F10 and choosing Yes when asked to confirm.