Errors found while scanning: Specified cast is not valid.

[pwalach]

I am fairly new to LANSweeper, but it's a great network inventory tool. We are using it to inventory all of the workstations in the Provincial School System and it's working out well thus far.

I am having an issue with several clients that are not able to be scanned and when you look at the Errors for the client you get the following error:

Errors found while scanning: Specified cast is not valid.

Any idea what is causing this error and how to remedy it so that these clients will scan and be properly inventoried?

[pwalach · Accepted solution]

Thanks for the info. I tried it on one of the clients in question, but it didn't help. I then remember a tool that I have used several times in the past:

http://www.tweaking.com/content/page/windows_repair_all_in_one.html

I tried this on the client computer, repaired most of the registry using the tool, rebooted and the computer scanned fine after that. Thanks again for the help!

[Hemoco]

This error is likely due to corrupt WMI (Windows Management Instrumentation) on the client machine. Lansweeper pulls most data from WMI. More info on this error can be found here: http://lansweeper.com/kb/47/How-to-repair-a-corrupt-WMI-installation.html