New answers tagged .net-4.0
It's not a rollback, .NET framework versions are side-by-side installs. Installing 4.5 doesn't overwrite 4.0, it's in addition. In other words, uninstalling 4.5 will not break 4.0.
And I would like to add, that for me, the .net framework 4.5 update superceeded update2; it wouldn't let me apply it after installing 4.5 (and the symptoms I was checking for - postbacks not working in IE10 are gone)
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