Sets SCardSvr (Smart Card) to Manual instead of Automatic. If you don't use a smart card reader or a CAC/PIV card for login, this service runs for nothing. Manual lets it start on demand if a smart card is ever inserted, so nothing breaks. Reversible.
MaxTweaks applies this tweak with one click and snapshots your original setting first, so you can revert it cleanly at any time. A System Restore point is offered before batch changes, and every tweak links to its official source.
Get MaxTweaksOfficial documentation: https://learn.microsoft.com/en-us/windows/security/identity-protection/smart-cards/smart-card-windows-smart-card-technical-reference