[QUOTE=geno888;2026411]There are two main solutions to do tests without screwing the system.
[li]Do a full backup of the entire HDD partition, install softwares and see results. If something goes wrong, you can quickly restore the entire partition in few minutes. To do this there are softwares like Norton Ghost or Acronis True Image.
[/li][li]Install all test softwares on a virtual machine, and see if something goes wrong. In this way, no modification will be done to your system.
Again, tkank you very much