If you want to try out software without installing what could be adware or something risky, use a virtual machine. Virtual machines are particularly useful because of their "snapshot" ability, which captures and quickly restores the VM's state. Here's how to set it up and use it.
Picture: OTA Photos
Software like Virtualbox, our favourite virtualisation app, lets you set up virtual machines quickly, and take a snapshot of each VM's state immediately after it's all set up. We've shown you how to do this before.
Once you have a snapshot of your VM, if you ever install something malicious or something that bogs down your virtual machine, you can roll it back to its original state in minutes with the snapshot. You can also use virtual machines to use software made for older operating systems, try out Android before you buy it, and test out different operating systems.