Step 1: Downloading Clean Master

1. Open the Google Play Store on your Android mobile.
2. In the search bar, type “Clean Master” and press Enter.
3. In the list of results, click on the application “Clean Master – Optimizer, Antivirus and Cleaner”.
4. Click the “Install” button and wait for the download to complete.

Step 2: Installing Clean Master

1. after the download, Clean Master will be installed automatically.
2. Once installed, click “Open” to launch the application.

Step 3: Using Clean Master

1. When opening Clean Master, you will be taken to the main screen of the application.
2. At the top of the screen, you will see some options, such as “Junk Files”, “Phone Boost”, “Antivirus” and other features.
3. To clean junk files, tap “Junk Files”. Clean Master will scan your phone for unnecessary files and display a list of them.
4. Check the boxes next to the files you want to delete and click “Clean” to remove them from your phone.
5. To optimize your phone's performance, tap “Phone Boost”. Clean Master will close background apps and free your mobile RAM memory to improve performance.
6. Explore the other features available in Clean Master, such as Antivirus, Application Manager, CPU Cooler, among others, and use them according to your needs.

Keep in mind that Clean Master is just one of the previously mentioned apps and there are other options available. Feel free to explore the different apps and features that suit your preferences and needs.