Introduction

The error code 0x80090006, also known as NTE_BAD_SIGNATURE, is a common issue that Windows users may encounter when working with digital signatures. This error typically indicates a problem with the digital signature used in a file or application, and it can prevent the proper execution or installation of software.

In the Windows environment, resolving this error is crucial for ensuring the integrity and security of digital signatures. This article aims to provide Windows users with tips and solutions to troubleshoot and resolve the NTE_BAD_SIGNATURE error.

Examples

Example 1: Verifying the Digital Signature of a File Using File Explorer

1. Right-click on the file that triggers the NTE_BAD_SIGNATURE error.
2. Select "Properties" from the context menu.
3. Go to the "Digital Signatures" tab.
4. Select the digital signature associated with the file.
5. Click on the "Details" button.
6. Verify that the signature status is "This digital signature is OK."

Example 2: Verifying the Digital Signature of an Application Using PowerShell

1. Open PowerShell with administrative privileges.
2. Run the following command: Get-AuthenticodeSignature -FilePath "C:\Path\To\Application.exe"
3. Check the "Status" property of the output. If it is "Valid," the digital signature is valid.

Example 3: Updating Certificates Using Certificate Manager

1. Press Windows + R to open the Run dialog box.
2. Type "certmgr.msc" and press Enter to open Certificate Manager.
3. Expand the "Trusted Root Certification Authorities" folder.
4. Right-click on "Certificates" and select "All Tasks" > "Import."
5. Follow the instructions to import the necessary certificates.