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 and KB5066835.
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 updates KB5065426 and KB5066835.
Resolution
This issue must be resolved by a Pitney Bowes representative.
If you need further assistance, please chat with us.
UPDATED: November 06, 2025