Windsor held a 5-4 lead after the first period and a 6-5 lead heading into the third period.
Shots on goal favoured Windsor 47-30.
Quintan Martin started in net for the Spartans and allowed five goals in the first period. Craig Seneca replaced Martin and made 38 saves on 42 shots.
The Spartans are back on the floor on Sunday when they travel to Six Nations to play the undefeated Rebels.
SCORING SUMMARY
1st Period
Spartans - Kyle Potter (Corey Antongiovanni, Matt Moore) 0:26
Spartans - Ty Carvalho (Michael Bosse, Bryson Fillipetti) 1:36
Windsor - Josh Jubenville (unassisted) 10:51
Windsor - Lucas Ducharme (Andrew Garant, Jeff Rivait) 11:35
Windsor - Jeff Rivait (Lucas Ducharme, Andrew Garant) 12:57
Spartans - Corey Antongiovanni (Trevor Hines, Kyle Potter) 15:41
Windsor - Ryan Marchand (Jeff Rivait, Logan Holmes) 17:51
Spartans - Craig Attwood (unassisted) 18:24
Windsor - Brendon Anger (Logan Holmes, Bryan Laroque) 19:07
2nd Period
Spartans - Ty Carvalho (Luke Grahnert, Danny Blocho) 2:50
Windsor - Jarred Riley (Bryan Laroque, Trevor Learn) 6:04
3rd Period
Windsor - Bryan Laroque (unassisted) 4:00
Windsor - Brendon Anger (powerplay) (Trevor Learn, Jeff Rivait) 4:18
Spartans - Evan Scott (powerplay) (Bryson Fillipetti, Kyle Potter) 13:59
Windsor - Brendon Anger (Matt Martinello) 14:33
Spartans - Bryson Fillipetti (powerplay) (Evan Scott, Trevor Hines) 17:16
Spartans - Ty Carvalho (powerplay) (Kyle Potter) 19:11
