30088-26-3685 Office 365

30088-26-3685 Error Code Office 365 Information
Difficulty LevelCritical
Resolution:DLL Issue
Cause:File Corruption
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 30088-26-3685 Error Code in Office 365

Repair Difficulty : Medium

Step 1: Disable Firewall

For Windows 8
1) Press Win key + Q. A search box will come up on right pane.
Office Error Code 30088-26-3685 Office 365 step 6
2) Open “Windows Firewall” from Control Panel
Office Error Code 30088-26-3685 Office 365 step 7
Office Error Code 30088-26-3685 Office 365
3) On left hand side you will find “Turn Windows Firewall on or off”
Office Error Code 30088-26-3685 Office 365 img 9
Warning: If you are logged in as Normal user you may be asked to enter Admin Password
Office Error Code 30088-26-3685 Office 365 img10
4) Press “Turn off Windows Firewall (not recommended)” under each network
location and then Click “OK”
Office Error Code 30088-26-3685 Office 365 img11

Step 2: Proxy Issue

1) Goto Control Panel.
Windows 7 : Click On Start and then Select Control Panel from Right Pane.
Microsoft Windows 8 : Press Windows Key + Q and Type “Control” And Click on it.
2) In Search Box Type Internet and Click on “Internet Options”.
3) Click On Connections Tab and then Press LAN Setting.
Office Error Code 30088-26-3685 Office 365 img 11
4) Turn off “Use a proxy server for your LAN” if its switched ON.

Step 3: Disable Antivirus

– Open Your Antivrus
– Disable it till the Office 365 repair is going on. Check manufacturer website for more details.

Step 4: Try the installation again

In most case 30088-26-3685 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

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