How can I bypass BitLocker for System Update?

I understand your requirement to without triggering the BitLocker to finish System Update.

In general, the BitLocker Recovery Blue Screen occurs during the system update process only when the system drive has been already encrypted with BitLocker. Thus, the operations will be simpler if you have already entered into the system and the encrypted disk is in an unlocked state:

Way 1: Temporarily Suspend BitLocker

BitLocker Suspend is the way to disable BitLocker protection for the moment as needed. After that, you can confidently proceed with system updates without worrying about encountering the BitLocker Recovery interface.

Way 2: Backup BitLocker Recovery Key

Besides, with the encrypted drive in unlock status, you can back up the recovery key to a secure location. Then you’re able to reset your BitLocker password with it.

If you update the system without performing the previous steps and encounter the BitLocker Blue Recovery Key screen, try the following methods:

Way 3: Enter Recovery key or Password

Turn to another online computer and log into the Microsoft website to find the specific recovery key corresponding to the recovery key ID displayed on the recovery screen.

Alternatively, enter the BitLocker password if you remember it. If you remember some characters of the BitLocker Password, then leveraging iSunshare UBitLocker to brute-force crack the password.

Way 4: Disable System Secure Boot

Step 1 Press "Esc" on the BitLocker recovery screen, then click on "skip this drive".

Step 2 Choose "Troubleshoot" > "Advanced options" > "UEFI Firmware Settings" > Restart.

Step 3 Wait for the computer to restart into UEFI, enter into the "Security" category.

Step 4 Set Secure Boot to "Disabled", then press "F10" to save changes.

Way 5: Update BIOS

Upgrading the BIOS carries a certain risk of failure. During the upgrade, do not shut down or interrupt the process to avoid unrecoverable data damage.

Step 1 First, download the BIOS with its version matches your computer’s motherboard model and save it to a USB drive (ensure the USB file system is FAT32).

Step 2 Insert the USB drive into the computer and restart it to access to the BIOS setup.

Step 3 Go to "Advanced" > "UEFI BIOS Update" > press "Enter".

Step 4 Locate the BIOS file on the USB drive > select the BIOS file > press "Enter".

Step 5 Follow the on-screen instructions until you see the message "Flash update complete", indicating that the BIOS has been successfully updated.