Unable to Install SP1 for Vista?
Today, trying to update Vista Ultimate to SP1 (released today), I ran into a bizarre error message:
"Service Pack can not be installed. System does not have required supporting Langauge Pack."
All of the language packs were installed but there was a exclamation point on the English one, in the Control Panel -> Regional and Language Options -> Keyboard and Languages -> Remove. Note that main tab indicated English was set as preference.
To correct.
Using the afore mentioned navigation - click Remove - and de-install ALL of the lanquages. This effectively removes the MSI for installing the languages.
Next install from Microsoft Downloads: Language Pack
Reboot. Be patient on the boot-up, it takes approximately 15-30 minutes for the 3 of 3 updates to install.
Your language pack files should now be properly installed (English only) and you can download (In my case the SP1 would not install via Microsoft Update) SP1 and install it manually from:
X86 SP1:
X64 SP1:
Hopefully that helps someone else in this situation.