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. REDBRENT06
    RedBrent06 Win User

    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. THELAUGHINGMAN
    TheLaughingMan Win User

    Microsoft Security Essentials

    What is Microsoft Security Essentials?
     
    TheLaughingMan, Aug 10, 2019
    #2
  3. WASEEMULLA S
    Waseemulla S Win User
    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
    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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