Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
restart [riːˈstɑːt] vt (engine) вновь запуска́ть (запусти́ть*perf) (work) возобновля́ть (возобнови́ть*perf)
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.