How to Disable “This program might not have installed correctly” Message Box in Windows 7
Does Program Compatibility Assistant dialog pop up every now and then on your Windows 7 system? At first you might think its a useful feature but then when it gets annoying just like in Windows Vista. Most of the time, the program you're installing installs fine and this message is an inconvenience.

In a quest to click your mouse less, you can disable this dialog box.

How to Disable “This program might not have installed correctly” Message Box in Windows 7 Y3UBg68

Note: This guide involves stopping a service. This service is for the following:

This service provides support for the Program Compatibility Assistant (PCA). PCA monitors programs installed and run by the user and detects known compatibility problems. If this service is stopped, PCA will not function properly.


Thus, by stopping this service you may have compatibility issues with other running programs.

To disable the This program might not have installed correctly message:

1. Click the Start Menu button, type services.msc, and press Enter key.

How to Disable “This program might not have installed correctly” Message Box in Windows 7 Xsm2UMV

2. Scroll down to Program Compatibility Assistant Service, right click it, and click Properties.

3. Change the Startup type: to Disabled and click Stop button.

How to Disable “This program might not have installed correctly” Message Box in Windows 7 SEbd6B6

4. Click Apply and then OK buttons.

That's it, now you’ll no longer see this message box.