When I click "Options" the system hangs for a second and crashes to the desktop.  This is a new install of Windows 10 and P3D on a new machine. The following is what's in the event viewer:

Log Name:      Application
Source:        Application Error
Date:          2/9/2019 12:10:48 PM
Event ID:      1000
Task Category: (100)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      VM-893721
Description:
Faulting application name: Prepar3D.exe, version: 4.4.16.27077, time stamp: 0x5bfdbb35
Faulting module name: KERNELBASE.dll, version: 10.0.17763.292, time stamp: 0xb51bba8e
Exception code: 0xc0020001
Fault offset: 0x0000000000055549
Faulting process id: 0x2af8
Faulting application start time: 0x01d4c09a480eac44
Faulting application path: D:\Prepar3D v4\Prepar3D.exe
Faulting module path: C:\Windows\System32\KERNELBASE.dll
Report Id: 4caa7a1d-ff4e-4d1f-9fbf-d295e2a432c3
Faulting package full name: 
Faulting package-relative application ID: 
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" />
    <EventID Qualifiers="0">1000</EventID>
    <Level>2</Level>
    <Task>100</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2019-02-09T17:10:48.280272900Z" />
    <EventRecordID>2145</EventRecordID>
    <Channel>Application</Channel>
    <Computer>VM-893721</Computer>
    <Security />
  </System>
  <EventData>
    <Data>Prepar3D.exe</Data>
    <Data>4.4.16.27077</Data>
    <Data>5bfdbb35</Data>
    <Data>KERNELBASE.dll</Data>
    <Data>10.0.17763.292</Data>
    <Data>b51bba8e</Data>
    <Data>c0020001</Data>
    <Data>0000000000055549</Data>
    <Data>2af8</Data>
    <Data>01d4c09a480eac44</Data>
    <Data>D:\Prepar3D v4\Prepar3D.exe</Data>
    <Data>C:\Windows\System32\KERNELBASE.dll</Data>
    <Data>4caa7a1d-ff4e-4d1f-9fbf-d295e2a432c3</Data>
    <Data>
    </Data>
    <Data>
    </Data>
  </EventData>
</Event>

Looks like Defender may be the culprit.  I disabled realtime scanning and the issue went away.  Anyone see this before?

A possible other solution is to turn off Windows Sync. 

10 hours ago, Jim Young said:

A possible other solution is to turn off Windows Sync. 

Thanks Jim, I'll keep it in mind if the issue comes back.