Windows Live Mail not sending–only receiving (June, 2018)

I can't send any emails on Windows Live Mail, but I do receive them. They aren't in my Outbox. My Comcast POP3 settings are current and correct.  I checked the Event Log and found these:

Faulting application name: wlmail.exe, version: 16.4.3528.331, time stamp: 0x533a3fce

Faulting module name: mshtml.dll, version: 8.0.7601.24000, time stamp: 0x5a499686

Exception code: 0xc0000005

Fault offset: 0x002574eb

Faulting process id: 0x%9

Faulting application start time: 0x%10

Faulting application path: %11

Faulting module path: %12

Report Id: %13

Event filter with query "SELECT * FROM __InstanceModification

Event WITHIN 60 WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadPercentage > 99" could not be reactivated in namespace "//./root/CIMV2" because of error 0x80041003. Events cannot be delivered through this filter until the problem is corrected.

I'm not computer-literate enough to know how to analyze these codes or correct the errors. I am running Windows Live Mail 2012 Build 16.4.3528.331 on Windows 7. This problem began May 15, 2018. The program has worked fine for many years.

Thanks for any help.