Windows Update Error 80072EFE – Cryptographic Service Error

June 7, 2017 Martin Reference Admin MS Windows

Error message 0x80072EFE when trying to installing update from the Windows Update website. This issue may be caused by hardware and / or software firewalls or proxy server or Windows category files are corrupted. To resolve the issue:

Step 1: Check background programs.

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Disable firewalls or other Internet browser programs that can affect the Internet connection. The following programs can affect the connection to the Windows Update site and I suggest you remove or disable them:

McAfee firewall
Norton Internet Security
Zone Alarm Firewall
Panda firewall

Step 2: Delete the CatRoot2 folder

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A: Stop Cryptographic Services:

Click Start, click Run, type in “SERVICES.MSC” and press Enter.
Double click Cryptographic Services, and then click Stop (if it has been started).

B: After stopping Cryptographic Service, please delete the “Catroot2” folder:

Locate the “C:\Windows\System32\” folder.
Delete the Catroot2 subfolder in System32.
C: Re-start Cryptographic Services:

Click Start, click Run, type in “SERVICES.MSC” and press Enter.
Double click Cryptographic Services, and then click Start.
After performing the above steps, please visit the Windows Update website and check for the available updates.

Cryptographic Service, Cryptographic Service Error, Microsoft Windows, MS Windows, Windows Update,

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