The Issue
The Stamps.com PC software has started to malfunction, produce error messages, or close unexpectedly.
The Cause
The Stamps.com PC software has become corrupted or damaged.
What to Do
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Exit the Stamps.com PC software.
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Open your web browser and go to www.stamps.com/download.
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Click the Download (64-bit) button to download the Stamps.com PC software installer.
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Launch the stamps64.exe file you just downloaded. The Stamps.com PC software installation wizard will open.
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Click Yes to allow the Stamps.com installation wizard to change your device and follow any prompts in the wizard.
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Select Repair Application. Then, click Next.
The software repair will begin.
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Click the Finish button to exit the installation wizard.
The Stamps.com PC software will open.
If this repair or reinstall did not solve your problem, please contact Customer Support.