Windows 10: windows settings freezing and defender has a blank page

my pc was having an expiro virus and i tried to reinstall windows and clear the drive but i installed local windows not the online one and now i'm experiencing some weird things like settings freezing and Windows not activated when i click at some things the settings freeze also the windows defender has a blank page and when i try to open bluestacks or office deployment it says this app has virus.

:)

 

Windows Defender blank page

I cant open my windows defender antivirus application it says only Security at a glance and its the blank page i can only go to the settings page which there are not many options i can do. I think my windows defender program is corrupted how can i fix
it i have updated my windows aswell but the same i cant scan my pc i need to install a third party antivirus to scan. Also i checked the services tab to see and i noticed that there wasnt a service called Windows Defender Antivirus Service only the network
one which i cant get to start it. I searched the google and i didn't find anything helpful.

 

Windows Update Settings Shows a Blank Page

Now I know why my WU Settings page was showing a blank.

I've installed Windows Update Manager by David Xanatos. When I choose Disable Automatic Update but do not Hide WU Settings Page, the WU Settings page comes out blank after reboot.

 

Accounts page in W10 Settings is blank


While attempting to add an image to my login in page, I discovered that the Accounts page in settings is not working.
I checked my admin account settings and they all seem to be correct and up-to-date. I then did some searching on the internet and found a similar complaint on the Microsoft Windows 10 forum that had several suggestions. The actions I took are these:
1. Open task mgr and click on File>Run New Task. Check the “..task with admin privileges” box.
2. type CMD to get the command prompt window.
3. type in dism /Online /cleanup-image /restorehealth and return.
This ran successfully and stopped at a new prompt.
4. type in sfc /scannow which found no corrupt of invalid files.
5. type powershell which concluded very quickly with no further info.
6. . I then restarted and checked my Accounts page again...it remained blank as before with a continuous searching
bar indicator.
I am logged in as Local Administrator(not elevated) and the Time and Date are correct for my time zone. I am unable to add any new accounts from either Accounts or Add someone else to this PC. Any suggestions are welcome. I have attached a screen shot of the Accounts page.