Windows 7 SP1 Running ZXWSoft 4.0 Shows "File Corrupted"

When running ZXWSoft 4.0 on Windows 7 SP1, some users encounter the error message "File Corrupted." This issue is usually related to the system failing to properly recognize or verify executable files with digital signatures. The root cause lies in insufficient certificate chain support or missing updates in Windows 7.

Cause of the Problem

• The default root certificates and signature verification mechanism in Windows 7 SP1 are outdated and cannot recognize the SHA-2 signature algorithm used by newer software.

• When the system cannot verify the signature, it directly prompts "File Corrupted," preventing the program from running.

• This is a system compatibility issue, not actual corruption of the software itself.

Solution

To resolve this issue, you need to install Microsoft-provided patches on Windows 7 SP1 to update the certificate validation mechanism and signature support.

Required Patches

1. KB4474419: Windows 7 SHA-2 Code Signing Support Update. In most cases, installing this patch and rebooting will allow ZXWSoft 4.0 to run.

•    This patch adds SHA-2 code signing support to Windows 7.

•    Download links: KB4474419 Patch Download    KB4474419 Official Documentation

2. KB4490628: Windows 7 Servicing Stack Update (SSU)

•    This patch updates the Windows 7 servicing stack to ensure subsequent patches can be installed correctly.

•    Download links: KB4490628 Patch Download    KB4490628 Official Documentation

Installation Steps

1. Confirm the system has been updated to Windows 7 SP1.

2. Install KB4490628 (Servicing Stack Update) first, then restart the system.

3. Next, install KB4474419 (SHA-2 Support Update), then restart again.

4. Run ZXWSoft 4.0 again, and the program should start normally.

Summary

When running signed EXE files on Windows 7 SP1, if the system shows "File Corrupted," it is usually due to insufficient certificate support. By installing KB4474419 and KB4490628, you can fix the signature validation mechanism and resolve the issue preventing ZXWSoft 4.0 from running.