Crypto multiplies, or even exponentiates, the effort you take to secure something vs. the effort an attacker makes to break it. But if you put 0 effort into logging in to your computer (no password, or the same simple password for every website, etc.) it will be broken easily, because 0 to the power of anything is still 0. If your computer has restricted boot, your only options are to make some effort at keeping your computer secure, or let someone else make the decision of what to run on your computer. If you're looking for convenience at the expense of security, you should push back against Secure Boot being enabled by default (which Win8 "certification" mandates).