i cant start windows defender after a virus on my pc error 0x800700aa

Page 1 of 2 12 LastLast
  1. XDM Inc's Avatar
    Posts : 261
    Windows 10 Enterprise
       #1

    i cant start windows defender after a virus on my pc error 0x800700aa


    i had a virus on my pc and i got it out but my windows defender is damaged. i already did all the scans like sfc and removed the virus but i cant re enable the windows defender, i just get 0x800700aa.
      My Computer

  2. Caledon Ken's Avatar
    Posts : 24,187
    Windows 10 Pro x64 Version 2004
       #2

    Hi xdarkmario.

    If you are absolutely sure the pest is gone you could try an in place repair / upgrade. I would backup my data files at a minimum and would even consider creating an image with a toll like Macrium Reflect.

    Repair Install Windows 10 with an In-place Upgrade

    This process will upgrade you to V1703 if you are not already using Creator Update, FYI.


    Ken
      My Computer

  3. XDM Inc's Avatar
    Posts : 261
    Windows 10 Enterprise
    Thread Starter
       #3

    I actually got it working by forcing to safe mode via command prompt and then changing back to regular mode via msconfig.
      My Computer

  4. Caledon Ken's Avatar
    Posts : 24,187
    Windows 10 Pro x64 Version 2004
       #4

    Great. The repair process listed in the tutorial may fix other things that your bug caused that you have not experienced yet. No need to run now but if you do find some other quirky things you can look at it.

    Thanks for posting your solution.
      My Computer

  5. XDM Inc's Avatar
    Posts : 261
    Windows 10 Enterprise
    Thread Starter
       #5

    Edit, it's not working after rebooting. Back to square one.
      My Computer

  6. Bree's Avatar
    Posts : 18,653
    10 Home x64 (20H2) (10 Pro on 2nd pc)
       #6

    xdarkmario said:
    i had a virus on my pc and i got it out but my windows defender is damaged....
    xdarkmario said:
    I actually got it working by forcing to safe mode via command prompt and then changing back to regular mode via msconfig.
    xdarkmario said:
    Edit, it's not working after rebooting. Back to square one.
    Seems you did not in fact get everything out. Apparently there's a process left that's disabling Defender when you restart. What did you use to try and get rid of the virus?

    My first step would be to run Rkill. That will stop known malicious services then, without restarting, immediately run AdwCleaner.
    https://www.bleepingcomputer.com/download/rkill/
    https://www.malwarebytes.com/adwcleaner/
      My Computers

  7. XDM Inc's Avatar
    Posts : 261
    Windows 10 Enterprise
    Thread Starter
       #7

    I ran adw cleaner, I'm not getting the browser popups a i did before and looking on the task manager there's no apps running that are out of place
      My Computer

  8. Bree's Avatar
    Posts : 18,653
    10 Home x64 (20H2) (10 Pro on 2nd pc)
       #8

    xdarkmario said:
    I ran adw cleaner...
    What did it say it found? AdwCleaner writes its log to a text file in C:\AdwCleaner
      My Computers

  9. XDM Inc's Avatar
    Posts : 261
    Windows 10 Enterprise
    Thread Starter
       #9

    Bree said:
    What did it say it found? AdwCleaner writes its log to a text file in C:\AdwCleaner
    this

    all it did was complacently remove my defragging app, i have to reinstall that -__-

    # AdwCleaner 7.0.2.1 - Logfile created on Tue Sep 05 09:50:02 2017 # Updated on - Pastebin.com
      My Computer

  10. Caledon Ken's Avatar
    Posts : 24,187
    Windows 10 Pro x64 Version 2004
       #10

    Looks like it took a number of keys out of registry.

    Have you tried the in place repair / upgrade? (with the backups in place)
      My Computer


 
Page 1 of 2 12 LastLast

  Related Discussions
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 21:26.
Find Us




Windows 10 Forums