How to create self-signed certificate using CMD?

I'm new to server configuration and need to create self-signed certificate using CMD, so I can use it in other PC.

I've already read a lot of information about it but didn't get how to do it. My purpose is to create a certificate which is valid for 1 year, so I can use it as server certificate. I'm using Windows 7 Professional. Can anyone help me? If you have your public key added to the Trusted Root CA's, you don't need to make a CA yourself. You just need to generate a certificate that contains the public key of the trusted root. You can do this with the following command:
Signtool.exe sign /f "mycert.pfx" /p "yourpassword" /t "mycertificate.cer"

You can read more about this in the Microsoft documentation.

How do I renew my Windows self-signed certificate?

I created a self-signed certificate using CA and generated the signing keys, but it expires in a month.

How do I renew my certificate? If possible, I'd like to renew the cert using either PowerShell or Certificates MMC snap-in.

This is a good question. There are a few ways to go about it: Use the Certificate Revocation List (CRL) to sign a new certificate. A CRL is a mechanism for publishing information about which certificates have been revoked or are expected to be revoked in the near future. It does this by providing an additional level of trust which a certificate may use when looking for another that is trusted. If the CRL is well-managed, then it is safe to renew using the current CRL and expect to be properly audited. This is the safest way to go.

The only problem with CRLs is that the CRL is not used as a public key. Which means that a signed CRL would not necessarily work. It would, however, be considered a "proof of revocation", which would mean the next time you run into a situation where a certificate is needed to be used, the user will be able to recognize the need for the CRL. There are very few, if any, organizations using CRLs anymore. The only known CRL that is maintained is a government one in order to make sure the government knows about every change that is made. There is no way to prove to anyone else that the certificate has been revoked. They still exist, so they must not be used.

Use a private key in a PKCS#10 format. In this case, you will need to export the key, and import it into a new certificate. You can do this by exporting the private key to PEM format, and importing it into the new certificate using the Convert To option in the Export dialog box.

You will also need to export a new signature policy. For details on how to export a signature policy, see How can I export an existing PKCS#11 signature policy file (.spk)? In summary, it involves exporting the keys, then exporting the policy and importing the signature policy.

Keep in mind that this will also involve exporting the private key from the old certificate.

Where to find a self-signed certificate in Windows?

We are using a self-signed certificate for the SSL encryption of our web application.

We have verified that the certificate has been added to the personal store on the computer that runs the web application. The certificate is for the "Windows User" and it is in the "Trusted Root Certification Authorities" store, but it is not listed in the "Personal" store.

I've added the certificate to the Personal store and set the certificate for the web application to use it. I've restarted the web application and I can see that the certificate is in use by the web application.

In IIS, the settings for the certificate look like this: My question is where does the certificate get stored? When I open "Computer Management", I can see it listed in the "Certificates" tab: If I open the properties of this certificate, it says that it is not installed on my machine. I assume that this means that the certificate is installed in the "Trusted Root Certification Authorities" store. But I still do not understand where to find the certificate in Windows.

Also, the certificate appears to be a Windows CA certificate, which is how I found it in the "Certificates" tab of Computer Management. Is there any reason why this is so? I would be interested in knowing how to move this certificate into the "Personal" store, and maybe some background on why it is installed in the "Trusted Root Certification Authorities" store. I'm having a very similar problem. Our application will only work if it is used over SSL. I've created a self signed certificate and added it to the Trusted Root Certification Authorities.

However, it does not appear in the "Personal" store on the computer. I've checked it with certmgr and it is installed in the Trusted Root Certification Authorities.

I've tried adding it to the Personal store and restarting the application, but it still does not appear. There is no way I can see to find it when I search for certificates. I just cannot see it on my own computer or any of my colleagues' computers either. The certificate must be somewhere on the computer, but I just don't know where it is or how to access it.

You'll need to follow the same steps I did to get mine into the Personal store.