A decentralized blockchain is a distributed ledger technology that does not rely on a single central authority or server for its operation. Instead, it is maintained by a network of computers and nodes that work together to validate and store transactions. This means that no single user or entity has control over the blockchain, making it an inherently secure and transparent system. As a result, there is no "disable" feature in a decentralized blockchain, since it is not controlled by any one entity. Instead, the network relies on consensus algorithms to validate transactions and maintain its integrity.