Whenever i open up Arma 3 through the launcher and close the launcher it creates a report on my desktop, here is what it says:

Arma 3 Launcher Exception Log

(\___/) Arma 3 Launcher encountered an unexpected error described below.
(='.'=) Sorry for the inconvenience.
(")_(") Please report this on Arma 3 Feedback Tracker (http://feedback.arma3.com). Thanks to you we may fix the issue faster... and the bunny will be happy!

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System information

Date: 2015-07-20 02:14:40 / 2015-07-19 22:14:40 -04
Current dir: C:\Program Files (x86)\Steam\steamapps\common\Arma 3
AppData dir: C:\Users\Marvin\AppData\Local
Command line: "C:\Program Files (x86)\Steam\steamapps\common\Arma 3\arma3launcher.exe"
CLR version: 4.0.30319.34209
OS Version: 6.1.7601.65536 (Microsoft Windows NT 6.1.7601 Service Pack 1)
OS 64 bit: True
Process 64 bit: False
Personal dir: C:\Users\Marvin\Documents
Culture: en-US
UI Culture: en-US
Point of log: Starup parameters handling default flow

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Exception

System.UnauthorizedAccessException: Access to the path 'C:\Users\Marvin\AppData\Local\Arma 3 Launcher\Presets\arma3.defaultpreset2' is denied.

at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean useAsync)
at System.Xml.XmlWriterSettings.CreateWriter(String outputFileName)
at System.Xml.XmlWriter.Create(String outputFileName, XmlWriterSettings settings)
at System.Xml.Linq.XDocument.Save(String fileName, SaveOptions options)
at Launcher.Presets.FileBasedPresetManager.SaveDefaultPreset(PresetInfo dto)
at Launcher.ViewModels.PresetsViewModel.SaveDefaultPreset()
at Launcher.ViewModels.PresetsViewModel.SaveSettings()
...
at System.Windows.Application.DoShutdown()
...