Windows 10: Microsoft Security Essentials Error code 0x80070645

Discus and support Microsoft Security Essentials Error code 0x80070645 in AntiVirus, Firewalls and System Security to solve the problem; I have Windows 7 Ultimate Edition 64 bit OS and cannot install MSE for a year now and cannot fix this. Any suggestions?... Discussion in 'AntiVirus, Firewalls and System Security' started by RedBrent06, Aug 10, 2019.

  1. Microsoft Security Essentials Error code 0x80070645


    I have Windows 7 Ultimate Edition 64 bit OS and cannot install MSE for a year now and cannot fix this. Any suggestions?

    :)
     
    RedBrent06, Aug 10, 2019
    #1

  2. Microsoft Security Essentials

    What is Microsoft Security Essentials?
     
    TheLaughingMan, Aug 10, 2019
    #2
  3. Windows 10 Windows Defender versus Microsoft Security Essentials

    Hi Bryan,

    Microsoft Security Essentials was upgraded to Windows defender and it was a default security software from Windows 8. You cannot have both as they are one.

    Since you get this annoying popup at the startup i suggest you to disable any Microsoft Security Essentials entries in Startup tab.

    • Open the Task manager. by pressing Press CTRL+Shift+ESC.
    • click on Startup tab
    • Right click on Microsoft Security Essentials entry and click on Disable.

    Restart the computer and check if that helps.

     
    Waseemulla S, Aug 10, 2019
    #3
  4. Corrosion Win User

    Microsoft Security Essentials Error code 0x80070645

    Corrosion, Aug 10, 2019
    #4
Thema:

Microsoft Security Essentials Error code 0x80070645

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