To find it, you need to:
1. Consult your owner's manual: This is the best and most reliable source. The manual will have a diagram showing the fuse box location(es) and a legend identifying which fuse controls the power windows.
2. Check the fuse boxes: Most S10 Blazers have at least one fuse box under the hood and another inside the cabin, usually under the dashboard. Look for a labeled fuse box or panel.
3. Look for labels: The fuses themselves or the fuse box cover may have labels indicating what circuit each fuse protects. Look for labels mentioning "power windows," "window," or similar.
If you can't find it after checking the manual and both fuse boxes, it's best to consult a qualified mechanic or auto electrician. They have the tools and experience to locate the problem correctly.