To install AQT, double click the install file aqtxxx_setup.exe.
If you plan on installing AQT into the C:\Program Files (x86) or C:\Program Files directory structures, you will need Administrator rights. So you have three options:
You should retain the install file in case you need to repair or remove the installation.
If your machine has multiple users, you can either do an ALLUSERS install (described in Technical Notes), or use the following procedure:
If any of your AQT files have been inadvertently deleted or corrupted, you can reinstall them by running aqtxxx.exe and selecting Repair. This will copy the AQT files again. Any files that you have created (queries etc) will not be effected by this.
If you are running AQT v9, AQT v10 or AQT v11, the AQT install will upgrade you to AQT v11. The Windows Installer will automatically uninstall the previous release then install the new release. You do not need to uninstall AQT first (though no harm is done if you do this).
This comment doesn't apply to AQT v8. Installing AQT v11 will not uninstall AQT v8. You will be able to run both AQT v8 and AQT v11 on your machine. You will be able to uninstall either version of AQT without affected the other.
If you wish to go back to an earlier release of AQT you need to:
Your files and settings will not be removed during this process.