"isass.exe system error indicates an encountered or specified revision number is not one known by the service." System does not boot.

My roommate has downloaded a manual from LG Electronics cell phone in format .pdf (Adobe). The download is complete on Firefox. It double click on the download finished in the 'Download', its pc box became very slow and finally frozen. It is running Windows XP Media since 2004 / 2005.
When it tried to reboot, the following message appeared...

"... isass.exe system error indicates an encountered or specified revision number is not one known by the service." Continues it's maybe a more recent revision, then the service is aware of... »

Then will continually attempt to restart. by a failure. Note the sequence of the events above are as accurate as the harshness.

Does this mean the registry is damaged?

Ran Iolo System Mechanic and has been able to run the tests in two (2). One of the physical drive and the other to the integrity of the partition. Nothing helps. A ran Norton recovery and found no errors. Performed a chkdsk /r and no mistake. Ran a chkdsk/p and found errors, but was not fixed. Any suggestions about where to start?

I would like to thank all those who helped in my installation of Windows 8 Preview of consumer. He didn't find any problems of incompatibility with Norton a few months back and HP support said that the hard drive has been ruined, and I had to buy one of them after receiving the disks to install Win 7 again. Instead, I have used Drive Scrubber from Iolo System Mechanic and installed Win 7 perfectly. I'm now back with Windows 8. ALL of you are awseome!




Try to start in last know good confriguration pressing f8


Tags: Windows

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