Hello Folks,
if you are using Windows XP as VDI or have old Terminal Server’s (incl. Citrix solutions) running Microsoft Windows Server 2003R2 or 2008 (32-Bit) you should not deploy KB3013455 which was released during the last Microsoft Patch Day.
The Update will cause a general font smoothing issue with a bunch of fonts and the users will/can get a much lower user experience if working with a lot of text content.
There is currently no work around for this issue, Windows Server 2008R2/2012(R2) and Windows 7/8(.1) do not show any issue once the update is applied.
The issue is already confirmed by Microsoft, read also here: MS15-010
The MS15-010 article currently doesn’t mention Windows XP (or Vista) but i was able to reproduce it also with a Windows XP 32-Bit VM.
Cheers
Michael
P.S.: Some Users also reporting issues with Windows Vista 32 Bit but i believe this is less important for VDI environments.