Spectre is a type of side-channel attack that targets the speculative execution feature of modern CPUs. Speculative execution is a technique used by CPUs to improve performance by predicting the outcome of a branch instruction and executing the instructions ahead of time. If the prediction is incorrect, the CPU rolls back the changes and resumes execution from the correct branch.

Reboot after changes. Re-enable by deleting those registry keys.

: It significantly lowers RAM utilization and CPU overhead compared to a default Windows 10 installation. Gaming Gains