Hello
You can still access your BitLocker-protected documents on a new PC. Here are the steps you can follow:
Plug in the encrypted BitLocker drive (USB, external hard drive, pen drive, etc.) into your new PC.
Wait for Windows to recognize the drive. When you are asked to select what happens with the drive, don’t click on anything, and ignore the notification.
After the notification where you are asked to choose what happens with the drive that you just plugged in, you should see another one, informing you that "This drive is BitLocker-protected."
Click or tap on this “Unlock drive” notification to see the dialogue for entering the BitLocker password.
Enter the password and, if you want Windows to automatically unlock the drive each time you plug it into the same computer, click or tap "More options."
Check the box that says “Automatically unlock on this PC,” and then press Unlock.
If you don’t see the notification for unlocking the encrypted drive, do not worry. All you have to do is open File Explorer. In File Explorer, go to This PC, and double-click (or double-tap) on the encrypted drive, found under “Devices and drives.” The BitLocker drive should have a lock on its icon. Then you are asked to enter the BitLocker password.
If you accidentally forgot the BitLocker password, click on More options and enter the Recovery key to unlock the drive.
https://www.digitalcitizen.life/how-unlock-bitlocker-encrypted-flash-drive/