Unable to open Business Manager

If when trying to open Business Manager, the screen flashes but nothing happens, it may be due to a conflict with Microsoft Windows update KB5065426.

Products affected: Business Manager

Issue

When trying to open Business Manager, the screen flashes but nothing happens. The program does not open.

Cause

There is a conflict with Microsoft Windows update KB5065426.

Resolution

This issue must be resolved by a Pitney Bowes representative.

If you need further assistance, please chat with us.

UPDATED: October 02, 2025