I have a HP Pavillion DV6, Windows 7 sp1, 4GB ram and 64bit. I have been unable to install from windows update KB2668562 (or separately) and have followed all the google and microsoft suggestions.
So I uninstalled Silverlight completely to try and reinstall. (Silverlight was installed OK prior to the above). I immediately get Error ID 1622 as soon as the silverlight exe has unpacked itself. I even tried right clicking and running as administrator, I have taken control of all the temp files and they all exist. Temp files are always cleared. The problem seems that it cannot write a log file. So having checked all the usual suspects, has anyone got any other ideas. M