When I intsall the latest MDK it stalls while installing m_ts.l into C:\Keil\ARM\RV31\LIB\armlib
The file just keeps getting larger (>70GB) until my hard disk runs out of space.
I tried an update install (over an older version) and a fresh install to a new directory, but both fail the same way
I tried the Windows 7 option of installing in XP compatibility mode bit that fails the same way too.
Use the integrity check to verify the installation.
http://www.keil.com/forum/20984