No changes whatsoever since Dec. 29. This machine is only used for Cubase.
I also verified in the Control Panel “Uninstall Program” applet, sorted by “Installed On” date. Nothing was installed after Dec. 29.
Also, Windows reports programs which are affected when setting a Restore Point. It reported that no programs were affected.
The only change I saw was a Microsoft Security Essentials Virus Definition update. I get those about once a week or so.