Keyset Does Not Exist - 6 Ways To Solve It

Troubleshooting the "Keyset Does Not Exist" Error in IIS

The dreaded "Keyset does not exist" error in Internet Information Services (IIS) typically stems from problems accessing the SSL certificate's private key, hindering secure website connections. This guide outlines several solutions to resolve this issue.

Key Steps:

• Grant IIS user access to the certificate's private key.
• Restart IIS using iisreset.
• Consider clearing TPM keys (data loss possible).
• Disable Hyper-V (if enabled).

1. Grant IIS User Access to the Private Key:

This is the most common solution. IIS needs permission to use the certificate's private key.

1. Open the Run dialog (Win R), type mmc, and press Enter.
2. In MMC, go to File > Add/Remove Snap-in.
3. Select Certificates, click Add, choose Computer account, then click Next > Finish > OK.
4. Expand Certificates (Local Computer) > Personal > Certificates. Locate your SSL certificate.
5. Right-click the certificate, select All Tasks > Manage Private Keys.
6. Click Add to grant the IIS user appropriate permissions.

2. Restart IIS:

After granting permissions, restart IIS to apply the changes.

1. Open Command Prompt as Administrator (Win S, type CMD, right-click, Run as administrator).
2. Type iisreset and press Enter.

3. Remove Work or School Accounts (If Applicable):

Conflicting work or school accounts can sometimes interfere.

1. Open Settings (Win I).
2. Go to Accounts > Access work or school.
3. Disconnect any potentially problematic accounts.
4. Restart your computer.

4. Remove Cryptographic Services Files (Use Caution):

A corrupted Cryptographic Services file can cause this error. Proceed with caution, as this impacts cryptographic data.

1. Open Services.msc (Win R, type services.msc, press Enter).
2. Stop the Cryptographic Services service.
3. Open File Explorer and navigate to C:Documents and SettingsAll UsersApplication DataMicrosoftCryptoRSA. Delete all files (not folders).
4. Restart the Cryptographic Services service.

5. Clear TPM Keys (Data Loss Warning):

Clearing TPM keys is a drastic measure that removes all stored cryptographic keys. Only use this as a last resort.

1. Open Windows Security (Win S, type Windows Security).
2. Go to Device security > Security processor details > Security processor troubleshooting > Clear TPM.
3. Restart your computer.

6. Disable Hyper-V (If Applicable):

Hyper-V conflicts can sometimes occur.

1. Open Command Prompt as Administrator. Type bcdedit /set hypervisorlaunchtype off and press Enter.
2. Restart your computer. Alternatively, disable it through Windows Features (Win R, type OptionalFeatures.exe).

By following these steps, you should be able to resolve the "Keyset does not exist" error and restore your IIS functionality. Remember to always back up your data before making significant system changes.

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