A method for operating a wind turbine, the method including, in response to receiving a request for a system start of the wind turbine, monitoring at least one measured value over a predetermined monitoring period; and effecting the system start in response to determining that the at least one measured value in the monitoring period corresponds to defined specifications, wherein: the at least one measured value is stored continuously in a data storage and a storage period in the data storage corresponds to at least the predetermined monitoring period, and monitoring the at least one measured value in response to receiving the request for the system start comprises checking, on the basis of the data storage, whether the at least one measured value in a storage period corresponding to the monitoring period before the request corresponds to the defined specifications.