Why is Windows Smart Screen suddenly 'protecting' PC since purchased new certificate
So I had a certificate from Comodo and bought via KSoftware that I use to sign my software so it does not generate a warning when users download it, this has been working fine but the 2 year certificate expired last month. I purchased a new certificate last week and applied to a new version of my application but now when I download it warns me unknown publisher, and wierdly when I click on more info it shows my full address instead of just my company name JThink.
I have looked at my old and new certificate in browser and noticed I had Jthink ltd in old certificate and JThink in new one, would this cause an issue ?
Update
Comodo tell me there is a period of time before Microsoft start accepting new certificates and it would still be a problem even if the company information was identical because the certicate no is different.
Is this true, and what length of timescale are we talking about here ?
You need to just wait some time. Windows collects different data for your new certificate (total downloads count, etc.) and in some near future (depends on downloads rate) it will mark it as white listed (if it's all OK). And all your downloads signed using this new certificate will not be blocked anymore.
The same mechanism applies (as I think) on downloads without certificates at all. Windows collects the file reputation and after some critical amount of "good-experience" downloads it marks the file as OK. The same logic applies to certificates. Thus you do not need to wait anymore if your certificate has a "good reputation".
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