My advice (repeat and expanded follows.
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Get the BIOS up to date or the last update.
Remember I can't give you a step by step because such changes with makes, models and time. Work with Lenovo or those that support you where you are if you can't do it yourself. -
While you did fine with the pictures there are still submenu items unexplored. Yes this would be something I could look through quickly if I had this PC on my desk or at a coffee shop but here it's a forum so we work with what we have.
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Maybe this is too much work. Start shopping for a better machine. I know this class of PC/laptop and VirtualBox will grind along and will upset almost all users I know today.