Quick Fix for Windows XP:
Download & Install KB931125 - Update for Root Certificates for Windows XP
http://www.microsoft.com/en-us/download/details.aspx?id=41084
Manual Fix for Windows 2000, XP, XP Embedded
- Download the GlobalSign Root-R1 certificate to an accessible location:
http://secure.globalsign.net/cacert/Root-R1.crt - Click Start > Run
- Type MMC and press OK
- Click on File > Add / Remove Snap-In
Note: In Windows 2000 click Console instead of File.
- Click Add
- Under Snap-in, double click on Certificates
- Click Computer Account > Next
- > Local Computer > Finish
- Click Close.
- Click OK to exit the snap-in window.
- Click [+] next to Certificates > Trusted Root Certification Authorities > Certificates
- Right click on Certificates and select All Tasks > Import
- Click Next
- Click Browse
- Select Root-R1.crt downloaded in step 1.
Press Open and Next to continue.
- Click Next
- Click Finish
- Press OK