Hello,
Thank you for posting in Microsoft Community forum.
Based on the description, I understand your question is related to Bitlocker.
According to your description, there is a way you can keep BitLocker on but don't need to enter password on each reboot.
Open Control Panel, click on BitLocker Drive Encryption. Click Change how drive is unlocked at startup for the OS drive you want to configure.
Choose one of the following options:
Unlock with a PIN: Enter a PIN that meets the specified requirements and click Set PIN.
Automatically unlock with TPM: Click Let BitLocker automatically unlock my drive and then click Finish.
Have a nice day.
Best Regards,
Molly