Unable to upload file in datastore “The operation failed for an undetermined reason. Typically this problem occurs due to certificates that the browser does not trust. If you are using self-signed or custom certificates, open the URL below in a new browser tab and accept the certificate, then retry the operation”

How to download and import CA certificate in windows machine for browses trusted certificate.

VMware vCenter 6.0,6.5,7,ESXi-6.0,6.5,7.

First Download the trusted root Certificate by entering Hostname or IP address of VMware vCenter.

Save the download file in location and extract it using windows explorer or any software

Open run with win+ R and type certmgr.msc

Goto -> All Tasks :- Import

Select the certificate from the directory and click Next

Click on place all certificate in the following store

Click on Finish

Click Yes to add the thumbprint(sh1)

We can see the certificate imported successfully.

Restart the browsers and Enter the hostname or IP

We can see that no certificate issue

Now You can upload the file successfully.