Update BackupToAAD-BitLockerKeyProtector.md

[d0rag0n]

Assuming that the RecoveryPassword protector type is always at index 1 in the array can lead to inconsistent results—I experienced this just yesterday. It's better to explicitly select the correct protector type rather than relying on it always being at index 1. On one system I worked on, it was actually at index 0, which is why I'm making this suggestion.

PR Summary

PR Checklist

• [x] Descriptive Title: This PR's title is a synopsis of the changes it proposes.
• [x] Summary: This PR's summary describes the scope and intent of the change.
• [x] Contributor's Guide: I have read the contributors guide.
• [x] Style: This PR adheres to the style guide.

[learn-build-service-prod[bot]]

Learn Build status updates of commit d15b288:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
docset/winserver2025-ps/bitlocker/BackupToAAD-BitLockerKeyProtector.md	:white_check_mark:Succeeded	View (WindowsServer2025-ps)

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[learn-build-service-prod[bot]]

Learn Build status updates of commit b90e211:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
docset/winserver2025-ps/bitlocker/BackupToAAD-BitLockerKeyProtector.md	:white_check_mark:Succeeded	View (WindowsServer2025-ps)

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel