One of the main sources of application logs is the Windows Event system. These are very easy to collect in Windows environments.
Get to the Control Panel.
Select System and Security.
In the System and Security folder look for Administrative Tools and click on the View event logs link.
In the left tree menu of the Event Viewer, expand Windows Logs.
Click on Application.
In the Actions menu in the right-hand side panel, click on Save All Events As.
In the popup file browser select a folder for the log file.
Give the log file a name. It will be given the .evtx extension. Press Save.
In the display Information popup, click OK.