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2. The following message appears: Check the "NET Framework" to be installed;

3. After the installation is completed, the following screen will appear, ensuring that "Run" is checked. . . . . "Point completed;

4. The following window will appear, click "Next";

5. When the following figure appears, you can slide the mouse to view the contents of the agreement and click "Next";

6. Check "Upgrade Installation" to select the installation component, and then click "Next";

7. Enter the tax number of the enterprise, enter O in the main billing machine, and enter other numbers in the extension. Click "Next" after the input is completed;

8. Fill in the area code of the tax authority in the corresponding position and click "Next";

After the installation is completed, the following interface will appear. Click "Finish" and the page for upgrading aerospace software will close.

You can open the billing software and compare it with the program released by Promise customer service to see if the upgrade is successful.