From [[http://it.slashdot.org/story/13/12/15/1643249/ask-slashdot-how-would-you-secure-your-parents-pc|Slashdot]]\\

1.- Install [[http://antivirus.comodo.com/|Comodo AV Free [comodo.com]]] and be DAMNED SURE to pick **YES** when it comes to installing **''Comodo Dragon''**. You can go ahead and uncheck ''geek buddy'', you don't need some guy at a helpdesk in India to tell them what to do.\\
2.- Go into ''Comodo AV'' after install and turn it to ''"paranoid mode"'' this will run everything in a sandbox by default and treat everything as suspect. Now for your not completely clueless you can leave it in clean PC mode, but for those that click the ''"punch the clown and win an iPad"'' types paranoid is safest.\\
3.- the final step is to download and install [[http://www.majorgeeks.com/files/details/comodo_time_machine.html|Comodo Time Machine [majorgeeks.com]]] and LOCK the first image, call it "clean PC" or something else that will be easy to tell grandma over the phone. A bit of warning when it comes to CTS, it dos NOT work on win 8, it does NOT work on dual boots, you should also set it to clean out old snapshots after say 30 days. 

That said you have a PC that can recover from pretty much every bug out there, a 100% clean PC that will stay that way. The browser is sandboxed and locked down, runs by default in low rights mode, the AV is watching everything like a hawk and if anything goes wrong, Time machine has you covered. It takes less than 10 minutes to restore with CTS. Reboot, hit home key when you see the big clock, pick the day before (assuming you set it for daily or snapshot on boot) and leave it alone...and that is it, the CTS will set the machine back.

Also  [[https://www.mywot.com/|WOT [mywot.com]]] is an excellent, low impact plugin that will warn about known dangerous sites.

For Windows updates, you can use [[http://download.wsusoffline.net/|WSUS Offline [wsusoffline.net]]]  to download all the updates, service packs, as well as DirectX, IE and .NET updates and then put onto a USB drive and let it go, takes all the hassle out of taking a Windows system from fresh install to ready to go from hours to less and an hour and a half.

[[http://ninite.com/|Ninite [ninite.com]]] is the PC fixit guy's best buddy. With ''Ninite'' all your major third party software is taken care of, you've got browsers and codecs and media players and antivirus and IMs and pretty much all of the stuff your average person wants, with ''Ninite'' you just check the boxes and go. oh and NO TOOLBARS, no extras, just a clean unattended install of the latest version of whatever you picked. As an added bonus if you need to update and aren't sure if your software is out of date? Just check the boxes and run it, ''Ninite'' will only install if you have the older version.\\

Though not really a solution [[http://www.horizondatasys.com/en/products_and_solutions.aspx?ProductId=18|Reboot Restore Rx]] can be used to create a wipe out all system changes at each reboot or [[http://www.toolwiz.com/products/toolwiz-time-freeze/|Toolwiz Time Freeze]] if you need something that works with Windows 8 (it's like Comodo Time Machine?)
