There are plenty of words that can be used instead of "restarts", which make the sentence or the context more interesting and diverse. Some of the synonyms for "restarts" are "reboots", "resumes", "reinitiates", "relaunches", "recommences", "begins again", "starts afresh", "reestablishes", "refreshes", and "reinstates". Each of these synonyms brings a unique tint and nuance to the sentence it is used in, and can create a different image and association in the mind of the reader or listener. It's always good to have a wide vocabulary, as it helps one to express their ideas more accurately and effectively.