Open Microsoft Management Console (MMC) on your server machine. Make sure that you are logged as administrator before proceeding. To open MMC, press Win+R combination, type in mmc and click OK.
In File menu, select Add/Remove Snap-in.
In the Add or Remove Snap-ins dialogue window, select Certificates and click Add.
Choose Computer account in the Certificates snap-in window, click Next.
Click Local computer in the Select computer box, then click Finish.
The required snap-in is selected now. Click the OK button to proceed. The snap-in is now added to console.
Locate the certificate that was imported when completing certificate request. The certificate should be in Personal store. Note that the icon of the certificate next to the domain name does not have a key on it; that means that no private key is assigned to the certificate
Double-click the certificate and go to Details tab.
In certificate details locate the Serial Number field, click on it and copy its value
Open Command Prompt, pressing Win+R and typing cmd, then click OK
In the command prompt type: certutil -repairstore my Serial_number from step 9.
Note: Make sure the serial number of your certificate does not contain any spaces. It should be a single string of symbols
If you receive “CertUtil: -repairstore command FAILED: 0x80090010” error, this means that the certificate request was generated on another server, and the private key is absent on this one. You need to either transfer the key to your server via PFX file or create a new CSR code and reissue the certificate.
Refresh the list of certificates in Personal certificate store in your MMC. The certificate icon should have the key on it.
Additionally, if you double-click the certificate, you will see the message: “You have a private key that corresponds to this certificate.“
You can now refresh the list of server certificates in IIS Manager or Exchange Management Console to see the certificate there.
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