The present disclosure relates systems and methods for executing an encrypted code section in a shieldable CPU memory cache. Functional characteristics of the software product of a vendor, such as gaming or video, may be partially encrypted to allow for protected and functional operability and avoid hacking and malicious usage of non-licensed user. The encrypted instructions may be written to the CPU memory cache and decrypted only once the CPU memory cache is switched into a shielded state. The decrypted code instructions may be executed from a designated cache-line of said CPU memory cache still in the shielded state.