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Open the Run Dialog:
Press Windows + R on your keyboard to open the Run dialog box.
Type mmc and click OK to open the Microsoft Management Console.
Add the Certificates Snap-in:
In the MMC window, go to File > Add/Remove Snap-in.
From the Available Snap-ins list, select Certificates and click Add.
Manage Certificates for Computer or User:
Choose Computer account if the certificate will be used by services or system-wide.
Choose My user account if the certificate will only be used by the current user.
Click Next, then Finish, and OK.
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