It's important to double-check the key, and if you need to, turn on Secure Boot in the BIOS. Be careful with advanced changes, and if necessary, talk to a professional.
Always I suggest people first try the free trial version of the software. Then take any finial decision. I recommend to you using the BLR Data Recovery tool because, most of the time, if you have the Bitlocker key, this software will work. In this many people told me like that.. different different platform.
