Bug Report: AIDA64 crashes (EAccessViolation) when closing NetUpdate window during update check

[UserX]

Product / Build

• Product: AIDA64 (Portable)

• Version / build: 8.20.8100

• OS: Microsoft Windows 11 Pro | OS Version: 10.0.26200 N/A Build 26200

Summary

AIDA64 can crash with an EAccessViolation if the user starts Help → Check for updates and then closes the NetUpdate/update window (X) before the operation completes.

Steps to Reproduce (100% reproducible)

1. Launch AIDA64 Portable.

2. Go to … (ellipsis) → Help → Check for updates.

3. While the NetUpdate dialog shows “Connecting to NetUpdate Server – Processing…”, click the X to close the update window before it completes.

4. AIDA64 throws an application error and terminates.

Actual Result

• AIDA64 crashes and exits.

• Error dialog shows:

Application Error
Exception EAccessViolation in module aida64.exe at 0000000000135CA2.
Access violation at address 000000000023E47D7 in module ‘aida64.exe’ (offset 15747D7).
Read of address 0000000000000520.

(Screenshot attached.)

Expected Result

Closing the NetUpdate/update window should either:

• cancel the update-check safely, or

• allow the update-check to continue without referencing UI resources,
  and AIDA64 should not crash.

Notes / Observations

• Network connectivity to the update server is fine at the transport layer:

  • Resolve-DnsName update.aida64.com returns 104.248.16.228

  • Test-NetConnection 104.248.16.228 -Port 443 succeeds

• This crash is specifically triggered by closing the NetUpdate window mid-operation, suggesting a UI-lifetime / callback issue (e.g., worker thread continuing to post progress/status to a window/object after it has been destroyed).

Suggested Fix (hypothesis)

When the NetUpdate dialog is closed, the update-check should:

• set a cancellation flag and stop the worker cleanly, and/or

• detach UI callbacks (verify window handle/object validity before posting updates),
  to prevent access to freed UI/state.

Attachments

• Screenshot of crash dialog (EAccessViolation).