AppName: msfeedssync.exe, AppVer: 8.0.6001.18702, ModName: user32

Antivirus and firewall prevent msfeedssync to connect.

You can use next 3 solutions (hope this help you):
NOTE: Before using ones of the next 3 solutions. You can test disabling your Anti-virus and check if the error occurs, if yes, then disable you firewall. But only for testing, AFTER test enable both AV and FW and select the solution from above that suits you better.

1. Disable the app:
Run CMD
and type: msfeedssync disable

2. Disable automatic update in IE
Internet Options - Content - Content Advisor -
"Sources” “Configuration” and disable “Search..."

3. Configure your Anti-virus and Firewall.
It depend of your software used, for the firewall you need to allow connections for msfeedssync.exe located in, C:\Windows\System32

Regards