I had Avast Antivirus on my machine, I uninstalled it and when I want to get Win Defender back it says "Your virus and threat protection is managed by your organization." There is no organization, it's just me.
Tech Support Guy System Info Utility version 1.0.0.9
OS Version: Microsoft Windows 10 Home, 64 bit, Build 18363, Installed 20191205002103.000000-240
Processor: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz, Intel64 Family 6 Model 142 Stepping 10, CPU Count: 8
Total Physical RAM: 8 GB
Graphics Card: Intel(R) UHD Graphics 620, 1024 MB
Hard Drives: C: 237 GB (60 GB Free);
Motherboard: HP 84A6, ver 80.43, s/n PHJFBC2MYD2765
System: Insyde, ver HPQOEM - 0, s/n CND9480C6T
Antivirus: Avast Antivirus, Enabled and Updated
Tech Support Guy System Info Utility version 1.0.0.9
OS Version: Microsoft Windows 10 Home, 64 bit, Build 18363, Installed 20191205002103.000000-240
Processor: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz, Intel64 Family 6 Model 142 Stepping 10, CPU Count: 8
Total Physical RAM: 8 GB
Graphics Card: Intel(R) UHD Graphics 620, 1024 MB
Hard Drives: C: 237 GB (60 GB Free);
Motherboard: HP 84A6, ver 80.43, s/n PHJFBC2MYD2765
System: Insyde, ver HPQOEM - 0, s/n CND9480C6T
Antivirus: Avast Antivirus, Enabled and Updated