With AppLocker, you can restrict other to have an access to your files.
1. Click on Start & type Gpedit.msc
2. Go to Computer Configuration > Window setting > Security Setting > Application Control Policies > Applocker
3.Right Click on ony one option(Executable, Installer, or script) and create a new rule.
After this your files, documents and folders are safe as now no one can access it without your permission.