The system extension “/System/Library/Extensions/WkClassicNotSeizeDriver.kext” was installed improperly and cannot be used.

Question

The system extension “/System/Library/Extensions/WkClassicNotSeizeDriver.kext” was installed improperly and cannot be used.

every time i have an update this will promt out, but the update still cary one sucesslly. do i need to do some thing with it our still ignore it? or do what it says? How to?

The system extension “/System/Library/Extensions/WkClassicNotSeizeDriver.kext” was installed improperly and cannot be used. Please try reinstalling it, or contact the product’s vendor for an update.

thanks for the helps.

Posted on Jun 13, 2012 11:46 PM

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Answer 1

Aug 14, 2017 9:11 AM in response to JSCHANCHENGCHAI

I believe this extension is a part of old ArchiCAD installations. It's part of the WIBU license key dongle that older versions of ArchiCAD (prior to v13) used. It doesn't appear to hurt anything, and I haven't been able to test whether the old ArchiCAD still works.

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Answer 2

X423424X

Level 6

14,271 points

Jun 14, 2012 12:04 AM in response to JSCHANCHENGCHAI

Need to google WkClassicNotSeizeDriver.kext to find out exactly what this is but I don't think it's an apple kext so remove it.

/System/Library/Extensions/WkClassicNotSeizeDriver.kext

After removal reboot. That reboot will take a little longer since the kext cache needs rebuilding.

Update:

Google search found the following thread:

WkClassicNotSeizeDriver.kext ??? under 10.6

Googling "WkClassicNotSeizeDriver.kext" didn't turn up anything really definitive as to where this really came from but it did show others have seen that same kext. Just trash it.

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