Driver upgrade from Matrix driver 8.8 to 8.9 fails on Vista 64

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Update:

I found the problem. The issue was caused by a corrupted INF driver cache. This came to light when I tried connecting my BlackBerry and Garmin GPS unit. Both devices failed durring their driver install. Apparently this is an on-going bug that just randomly occurs from time to time. Though this is the first time I've personally experienced this problem... Good news however, the fix is simple.

Here is the website where I found my answer. Basically, the batch file clears out the bad files in question. You may have to reboot your computer and run again just to be sure they're not still locked and in use which will prevent their deletion. Below is also the text needed to create your own batch file. Be sure to right-click and "run-as" Administrator.

http://pmhesse.blogspot.com/2007/07/how-to-fix-vista-driver-cache.html http://pmhesse.blogspot.com/2007/07/how-to-fix-vista-driver-cache.html

I was now able to install (and verify) the Matrix driver 8.9 successfully. My Blackberry and Garmin GPS unit also installed too.

@echo off

TITLE Repairing Inf Cacherem change to drive where windows runs%SystemDrive%rem change to the \windows\inf foldercd %SystemRoot%\infrem create random directory for backupset FOLDERNAME=infbk-%RANDOM%mkdir %FOLDERNAME%rem list of files which need to be removed set FILE1=INFPUB.DATset FILE2=INFSTOR.DATset FILE3=INFSTRNG.DATset FILE4=INFCACHE.*set FILE5=SETUPAPI.*rem take ownership of the first filetakeown /f %FILE1%rem grant full control to 'administrators'icacls %FILE1% /grant administrators:F /trem move it to the backup foldermove %FILE1% %FOLDERNAME%rem same for the other filestakeown /f %FILE2%icacls %FILE2% /grant administrators:F /tmove %FILE2% %FOLDERNAME%takeown /f %FILE3%icacls %FILE3% /grant administrators:F /tmove %FILE3% %FOLDERNAME%takeown /f %FILE4%icacls %FILE4% /grant administrators:F /tmove %FILE4% %FOLDERNAME%takeown /f %FILE5%icacls %FILE5% /grant administrators:F /tmove %FILE5% %FOLDERNAME%echo Successfully moved all infcache related files to %FOLDERNAME%pause