> Source: [sk163797](https://support.checkpoint.com/results/sk/sk163797)

# sk163797 - Cannot switch languages via external keyboard in FDE preboot screen

| Property | Value |
|----------|-------|
| Solution ID | sk163797 |
| Date Created | 2019-12-03 |
| Last Modified | 2019-12-05 |
| Technical Level | Advanced |
| Products | Endpoint Security |
| Versions | Cloud, E89.X, E88.X |
| OS | Windows |

## Symptoms

- * Cannot switch languages via external keyboard in FDE preboot screen.
* "Alt+Shift" combination does not work on external keyboards on UEFI machines in FDE preboot screen.

## Cause

The issue is caused due to the current implementation of reading keystrokes on UEFI.

## Solution

This solution requires authentication. Please log in to view the full solution.

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