Reinstalled the system windows10 1703 with last update,then installed avast_free_antivirus_setup_offline ver17.8.2318, The next day, i get the information:your license is not valid.but this free antivirus.
The same system environment:windows10 X64 pro 1703 with last update. and comodo firewall 10.0.2.6396 installed.
then Install avast_free_antivirus ver17.7.3660.0,This did not happen。then direct upgrade to ver17.8.2318, "Your license is not valid" appearing again.There is a clear difference between the two versions.
After several attempts,should be to solve the problem:allow C:\Windows\System32\taskhostw.exe modify the following registry:
HKUS\*\Software\Microsoft\SystemCertificates\MY
HKUS\.DEFAULT\Software\Microsoft\Cryptography\CertificateTemplateCache
HKLM\Software\Microsoft\SystemCertificates\MY
"Your license is not valid" did not happen.
Test sytem: windows 10 1709 x64 pro with last update, remove ie and Edge.
Frist installed comodo firewall 10.0.2.6420 (hips was off), then installed avast free antivirus 17.9.2319. restast system.
Completed the start,imported comodo configuration, now hips was on, hips rules: avastsvc.exe avastui.exe avemupdate.exe aswidsgenta.exe taskhostw.exe TiWorker.exe seted to allowed programs. EVERY thing was ok. The next morning,power on the computer,every thing is ok.
Shut down at noon。Afternoon boot,Network closing,every thing is ok. But connect to the internet, "Your license is not valid" did happen.
I will do more try to solve this problem.