With the introduction of Windows 10 there have been many reported cases of data loss as Win10 is push out to those users that never even "reserved" a cop of Win10 "just in case".
In other cases, Microsoft has sneaked in some updates to users of Win7/8/8.1 that causes those OS's to emulate the data collection and "sharing" of that data in the same manner that Win10 does.
The impact on those of us that have capped data plans is that there are now background processes that rob us unknowingly by downloading things we don't want and collecting and uploading info that we don;t want shared.
It is a fine line we run these days .... it is dangerous to be on the 'net without a fully up to date operating system and it seems its almost as risky to run Win update.
To that end here is a list of updates that have been recommended by some experience users to either remove if already installed or do a "notify and let me choose" and uncheck and "hide" the listed KB's
Win 7 updates to avoid:
KB2505438 - Slow performance in applications that use the DirectWrite API on a computer that is running Windows 7 or Windows Server 2008 R2 = It often breaks fonts (see also KB454826)
KB2670838 - Platform update for Windows 7 SP1 and Windows Server 2008 R2 SP1 = breaks AERO functionality and gives you blurry fonts on some websites
KB2952664 - Compatibility update for upgrading Windows 7 = Windows 7 nagware patch that touts the Windows 10 upgrade
KB2977759 - Compatibility update for Windows 7 RTM = W10 Diagnostics Compatibility telemetry
KB2990214 - Update that enables you to upgrade from Windows 7 to a later version of Windows
KB3021917 - Update to Windows 7 SP1 for performance improvements (telemetry)
KB3022345 - Update for customer experience and diagnostic telemetry -> Replaced by KB3080149
KB3050265 - Windows Update Client for Windows 7: June 2015 = WU service updated to accept upgrade to W10 + other fixes
KB3068707 - Customer experience telemetry points (update appears to be nuked from microsoft.com)
KB3068708 - Update for customer experience and diagnostic telemetry
KB3075249 - Update that adds telemetry points to consent.exe in Windows 8.1 and Windows 7
KB3080149 - Update for customer experience and diagnostic telemetry
KB3035583 GWX update installs Get Windows 10 app on Win 7 and 8.1
As always, whenever you "fiddle" with your computer, make sure you have all data backed up including a disc image.
Well, Microsoft says you have to have them ....... but they really seem to be pushing SAAS (software as a service.
Also, you don't delete them, if already installed you uninstall them.
If not yet installed, you "deselect" them and then "hide" them in the hopes they don't return.
So is it "safe" not to install an update like KB2952664 - Compatibility update for upgrading Windows 7 = Windows 7 nagware patch that touts the Windows 10 upgrade ..... I think so.
Again ... make sure you have a proper backup strategy and a viable disc image.
There are those that allowed the upgrade to Win10, did not care for it and had issues going back to their previous OS. If they had to reload from a factory image it would be nice to know just what updates not to reinstall.