Run 2 "instances" of blender at the same time? I was wondering if it's possible to run two "instances" of blender at the same time. As in installing blender twice and running both, using them for different projects. I ask this because I have blender rendering a project right now and it's taking quite a while. I'm being a little cautious here because I don't want any corrupt system files or anything. Thanks in Advance!

My Rig Specs are:

Windows 8.1 Pro

i7 6700k OC to 4.7GHz

Dedicated harddrive for programs

nVidia GTX 1060

AMD R7 370
You can run as many instances as you want off the same install. Just run the .exe again. Note that this may get more complicated if you are launching through a command prompt. I often run multiple instances, especially when doing physics simulations.

Note that when GPU rendering, it tends to cause slowdown/lag on your main screen. This is because the GPU resources are going to rendering. If you have multiple graphics cards it isn't as bad, but you can still get screens slowing down even if they are on a card that isn't rendering.