As I have sensitive info on my laptop I do not want to leave traces of online activity and also not from certain applications I use. I already know a few options, but need your experts advice on what would be best: - VMWare (or any other virtual machine software) with *.iso livecd. No snapshots, so all traces will not be saved. Is this true if you run your vmware from the host OS? Does qemu or vmware not leave traces? which "vmware" would be best in your opinion? - ShadowUser (ShadowSurfer) Read a lot about it on the forum but never tried it myself. See a lot of alternatives also. Works with snapshots and you can roll back to certain snapshot, so all changes will be not saved. Is this true that even technician could not find any traces of work or online activity with this kind of software? I do not want to start discussion about ShadowUser or any other similar software and which would be better... I saw many other threads about this. Thank you for all the input !