It seems you are experiencing an issue where your keyboard is unresponsive during startup, preventing you from entering your PIN. This can sometimes be caused by the Disable new DMA devices when this computer is locked policy, which may block certain devices until a user logs on. If this policy is enabled, it can lead to situations where devices, including keyboards, are not recognized until after logging in.
To troubleshoot this issue, you can try the following steps:
- Check Group Policy Settings: If you have access to the Group Policy Editor, navigate to Computer Configuration > Administrative Templates > Windows Components > BitLocker Drive Encryption and check if the policy is enabled. If it is, consider disabling it to see if that resolves the issue.
- Update Drivers: Ensure that your keyboard drivers are up to date. Sometimes outdated drivers can cause hardware recognition issues.
- Check BIOS Settings: Restart your computer and enter the BIOS/UEFI settings. Look for any settings related to USB or keyboard support and ensure they are enabled.
- Try a Different Keyboard: If possible, test with another keyboard to rule out hardware issues.
- Windows Updates: Make sure your Windows is fully updated, as updates can fix bugs and improve hardware compatibility.
If these steps do not resolve the issue, consider reaching out to Microsoft Support for further assistance.
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