引用自 LaZycAt：

maybe something corrupted, try this:
1. close Idle Master
2. go to this folder
C:\Users\<username>\AppData\Local\IdleMaster
3. remove all folder you see, ex. IdleMaster.exe_Url_xxxxxxxx
4. start idle master

I tried, but nothing changed..It's still showing that "Idling"

引用自 LaZycAt：

not sure what happened, giving you some common solution

• Re-download the idle master
  
  
• Change idle master compatibility
  https://support.microsoft.com/en-us/help/15078/windows-make-older-programs-compatible
  
  
• Run as administrator
  
  
• Use "All in One Runtimes" software to install/fix required runtimes on your system
  https://www.google.com/search?q=all+in+one+runtimes

It was working 2 days ago and just suddenly stopped working.

And I'm getting error report btw...

2016/11/26 10:58:12
System.NullReferenceException: Object reference not set to an instance of an object.
at IdleMaster.frmMain.<blacklistToolStripMenuItem_Click>b__41(String appid)
at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate)
at IdleMaster.frmMain.blacklistToolStripMenuItem_Click(Object sender, EventArgs e)
at System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)
at System.Windows.Forms.ToolStripMenuItem.OnClick(EventArgs e)
at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
at System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met)
at System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met)
at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
at System.Windows.Forms.ToolStripDropDown.OnMouseUp(MouseEventArgs mea)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.ToolStrip.WndProc(Message& m)
at System.Windows.Forms.ToolStripDropDown.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

In the UI there's nothing but "Idling"