Can't install HP drivers due to expired HP certificate

[StevenPietrobon]

I bought my printer a while ago but only have got around to installing it. Unfortunately, I get the following error when I tried to install the software (Full_Webpack-44.11.2784-LJM282-M285_UW_4_1_Full_Webpack.exe).

"Installation Error

A file that is required cannot be installed because the cabinet file
C:\DOCUME~1\Steven\LOCALS~1\Temp\7zS55C0\LM282x86.cab has an invalid digital signature. This may indicate that the cabinet file is corrupt.

The digital signature for your software could not be verified. To fix, please connect to the Internet or run Windows Update and restart the device install."

Checking the certificate for file LM282x86.cab says that the certificate issued to HP Inc. is only valid from 29 March 2022 to 30 March 2023! Presumably, I can fix the problem by obtaining an updated HP certificate. Can anyone tell me where I can find an HP certificate that will work on Windows XP and where I should install the certificate? Thanks!

Attached are some screen grabs showing the certificate error. I checked the DigiCert certificates and they are good up to 2038 for the root and 2036 for the intermediate.

[Max3Aj]

Hi @StevenPietrobon, Welcome to HP Support Community. 

Thank you for posting your query, I will be glad to help you. 

You're encountering this issue because the HP driver package you're trying to install has an expired digital signature. Since you're using Windows XP, which does not support SHA-2 signatures natively, it is likely that the operating system is unable to verify newer certificates.

Possible Solutions:

Manually Install Updated DigiCert Certificates

Since the root and intermediate certificates are still valid, you might need to update them manually. Try downloading and installing the latest DigiCert Trusted Root and Code Signing Certificates:

• Go to DigiCert's Root Certificate page
• Download: The relevant root and intermediate certificates (DigiCert Trusted Root G4 and Code Signing RSA4096 SHA384 2021 CA1)
• Install them: Double-click the downloaded .cer files and install them in the Trusted Root Certification Authorities and Intermediate Certification Authorities stores.

Enable SHA-2 Support on Windows XP

Windows XP does not natively support SHA-2 code signing certificates. You may need to install the KB3033929 update if you are using Windows XP SP3. However, Microsoft no longer provides updates for XP, so this may be difficult to obtain.

Modify Windows XP Date Temporarily

• Set your system date back to a period when the certificate was valid (e.g., between 29 March 2022 and 30 March 2023).
• Retry installation to see if it bypasses the invalid signature check.
• After installation, revert your system clock back to the current date.

Try Extracting and Installing Manually

• Extract the installer using 7-Zip or WinRAR.
• Navigate to the extracted LM282x86.cab file and try to install the drivers manually via Device Manager.

Check for a Newer HP Installer

Since you are using an older installer, check if HP has released a newer version of the software package that might have an updated certificate. You can find it on the official HP support website.

Use a Different OS for Installation

If possible, install the printer on a newer version of Windows (7, 10, 11), then extract the necessary drivers for manual installation on Windows XP.
 

I hope this helps. 

Take care and have a good day. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping! 

Max3Aj

HP Support 

[StevenPietrobon]

Unfortunately, my post keeps getting deleted as being spam! I've sent a reply by email.

[Max3Aj]

Thank you for your response @StevenPietrobon. 
Since you've tried multiple approaches without success, let's refine the troubleshooting steps.

What We Now Know:

1. Updated DigiCert certificates didn't work → This suggests that the installer itself is still enforcing the expired certificate.
2. SHA-2 support on XP is present (you confirmed your crypt32.dll version).
3. Changing the system date helped partially → It fixed the certificate path error but not the installation issue.
4. Manual driver installation is possible but unclear → You need help installing drivers from the extracted .cab file.

Next Steps:

1. Force Windows XP to Ignore Signature Verification

Since the expired signature is blocking installation, try disabling signature enforcement:

• Open Command Prompt (cmd) as Administrator.
• Run the following command: bcdedit /set nointegritychecks on
  (If you get an error, try using bcdedit /set loadoptions DDISABLE_INTEGRITY_CHECKS.)
• Restart your computer and attempt to install the driver again.

If this works, you can re-enable integrity checks later with: bcdedit /set nointegritychecks off

2. Manually Install the Drivers via Device Manager

Since the .cab file won't install via the installer, try installing manually:

Extract the Cabinet File:

• Use 7-Zip or WinRAR to extract the LM282x86.cab file.
• Place the extracted files in a folder (e.g., C:\HP_LaserJet_Drivers).

Install via Device Manager:

• Press Win + R, type devmgmt.msc, and hit Enter.
• Look for your printer under Other devices (or Unknown devices).
• Right-click it and choose Update Driver.
• Choose Browse my computer for driver software.
• Select the folder where you extracted the .cab files.
• Click Next and follow the prompts.

3. Edit the Driver INF File (If Needed)

If the manual installation fails, the .inf file inside the extracted driver folder may be enforcing digital signature verification.

1. Open the .inf file (inside the extracted .cab folder) with Notepad.
2. Look for lines like: CatalogFile=*.cat
   Remove or comment out (;) those lines.
3. Save the file and retry Step 2 (manual driver install).

4. Modify the Installer (Advanced Option)

If none of the above work:

• Use Universal Extractor or 7-Zip to extract the entire installer (.exe).
• Look for .cat or .inf files enforcing signature checks and try modifying/removing them.
• Repack the installer and run it.

Summary:

1. Try disabling integrity checks and running the installer again.
2. Manually install drivers via Device Manager from the extracted .cab file.
3. If needed, edit the .inf file to remove signature requirements.
4. If all else fails, try modifying the installer

I hope this helps. 

Take care and have a good day. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping! 

Max3Aj

HP Support