IS MINECRAFT SAFE TO DOWNLOAD ON WINDOWS?

Will it cause any viruses or slow my computer down at all? Please answer as soon as possible.

Yes it's safe to download Minecraft on Windows or PC.

All depends on where you download it from and how good of an ant-virus software you have

Minecraft has no virus just make sure you get it from the official site - www.minecraft.net. It does slow your computer down a little, only when you're playing it though. It won't slow it down at all if you're not playing it.