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c0000034 Office 365

c0000034 Error Code Office 365 Overview
Difficulty LevelMedium
Resolution:Manual
Cause:System Integrity Issue
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix c0000034 Error Code in Office 365

Repair Difficulty : Critical

Step 1: Disable Microsoft Windows Firewall

For Windows 8
1) Press Win key + Q. A search box will show up on right pane.
Office Error Code c0000034 Office 365 step 6
2) Open Windows Firewall from Control Panel
Office Error Code c0000034 Office 365 step 7
Office Error Code c0000034 Office 365
3) Tap On “Turn Windows Firewall on or off”
Office Error Code c0000034 Office 365 img 9
Warning: You will need Admin privileges to disable Windows firewall.
Office Error Code c0000034 Office 365 img10
4) Click on “Turn off Windows Firewall (not recommended)” under each of the active network connections.
Office Error Code c0000034 Office 365 img11

Step 2: Proxy Issue

1) Goto Control Panel.
Windows 7 : Click Start and then Select Control Panel from Right window.
Windows 8 : Press Windows key + R and type “Control” and Press Enter.
Office Error Code c0000034 Office 365 img 9
2) In Control Panel Window Click on “Internet Options”.
3) Click On Connections Tab and then Press LAN Setting.
Office Error Code c0000034 Office 365 img 11
4) Turn off “Use a proxy server for your LAN” if its switched ON.

Step 3: Run System Scan

1) Press Windows + R
Office Error Code c0000034 Office 365 img14
2) Type cmd and Press Enter.
Office Error Code c0000034 Office 365
3) Type “sfc /scannow” and press enter.
Office Error Code c0000034 Office 365 img18
Note: You will need Admin previlage to run the sfc command.

Step 4: Try the installation again

In most case c0000034 error code in Office 365 should be resolved by now, if however the problem still persists please get your system checked by an expert.

If you are not able to resolve the issue following above steps, you can contact our 24×7 Chat Support for help.

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  • January 1st, 1970

    Posted In: Office 365