Hi, I am trying to fix an Internet Explorer issue hopefully without needing to reinstall Windows altogether. Since I've tried just about everything else already, the last step before that is to get some fresh certificates. Much appreciate if someone who is using WinXP SP3 (maybe Vista/7 work too, idk) and Internet Explorer 8+ wit up to date root certificates (April 2012) could send me their: Trusted Publishers Intermediate Certification Authorities As a pfx export wih extended properties attached? I've gotten the other sections off my work PC, but the 2 sections above are different on my work PC as all traffic is routed through a central server. To export them, go to Internet Options - Content - Certificates Then click the appropriate tab, highlight everything and click export. You have to password the export: I'd probably suggest using simply notd or so. Thanks.