Sleep/Standby modes are not the best designed parts of any system. Don't know weather to blame the hardware/software or a combination. Turning it off saves a lot of issues among various brands and models. Just my experience.
Currently you are not allowed to proceed to checkout on Steam if an item in your cart is already owned by you when purchasing for yourself is selected.
Moving a Steam Installation and Games
How do I install my games to a different location?
How can I move Steam to a different location?
Steam installs to the following folder by default:
C:\Program Files\Steam
Files for games installed on Steam are stored in the following folder...
https://support.steampowered.com/kb_article.php7418-YUBN-8129
No idea why the link does not work. Do a search with "Moving A Steam Installation " and it should be the first hit.
With all the links I get a 404 not found when I post them here and what evilsofa posted also.
For your new installation to recognize your Steam folder and games its a fairly simple procedure. Delete everything in the steam folder except steam.exe and the steamapps folder, then run steam.
Moving A Steam Installation
I got an email last week from Steam that I had requested a password reset so someone's making the rounds. It was not me and nothing had been compromised.
Another vote here for the Y580. Depending on options it can fall below 1K in pricing and has a 660M for gaming. You can also add an msata drive for extra speed on specific programs to install on it.
In hindsight, log into the admin account and then rename the /users/<name> directory, delete the user profile then ceate the replacement. Copy back from the renamed directory the files you want.