Hey guys. I have this preactivated copy of win 8.1 pro here and I'm noticing several errors (event 1026) related to .net runtime. Code: Application: Service_KMS.exe Framework Version: v4.0.30319 Description: The process was terminated due to an unhandled exception. Exception Info: System.ArgumentOutOfRangeException Stack: at System.Collections.ArrayList.RemoveAt(Int32) at Service_KMS.WMISoftwareLicense.Activate(System.Collections.ArrayList) at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object) at System.Threading.ThreadHelper.ThreadStart() Code: Application: KMSELDI.exe Framework Version: v4.0.30319 Description: The process was terminated due to an unhandled exception. Exception Info: System.IO.IOException Stack: at System.IO.__Error.WinIOError(Int32, System.String) at System.IO.FileStream.Init(System.String, System.IO.FileMode, System.IO.FileAccess, Int32, Boolean, System.IO.FileShare, Int32, System.IO.FileOptions, SECURITY_ATTRIBUTES, System.String, Boolean, Boolean, Boolean) at System.IO.FileStream..ctor(System.String, System.IO.FileMode, System.IO.FileAccess, System.IO.FileShare, Int32, System.IO.FileOptions, System.String, Boolean, Boolean, Boolean) at System.IO.StreamWriter..ctor(System.String, Boolean, System.Text.Encoding, Int32, Boolean) at System.IO.StreamWriter..ctor(System.String, Boolean, System.Text.Encoding, Int32) at System.IO.StreamWriter..ctor(System.String, Boolean, System.Text.Encoding) at System.IO.File.InternalAppendAllText(System.String, System.String, System.Text.Encoding) at KMSELDI.Logging.FileLogger.ᜀ(System.String ByRef) at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object) at System.Threading.ThreadHelper.ThreadStart() What do you guys think? Could it be something wrong with the crack? How could I fix that?