TL;DR; Step-by-step guide to resolving common installation and repair issues with Team Foundation Server SP1 on data and application tiers, including rollback options.

If you are out there and you have installed SP1 for Team Foundation Server you probably went through as much pain as I did…
Solution:
If at any point you have a problem. You can always uninstall SP1 from both of the tiers and get the system working again. There are a number of solutions out there, including this one, which can fix the problems you have with TFS SP1… None of them worked for me…
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