80070490 WindowsUpdate_dt000 Office 365

80070490 WindowsUpdate_dt000 Error Code Office 365 Information
Difficulty LevelHigh
Resolution:Virus Issue
Cause:Software Level Conflict
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 80070490 WindowsUpdate_dt000 Error Code in Office 365

Repair Difficulty : High

Step 1: Disable Microsoft Windows Firewall

For Windows 8
1) Press Windows Button and Type “Control Panel” and Press Enter.
Office Error Code 80070490 WindowsUpdate_dt000 Office 365 step 6
2) Open Windows Firewall from Control Panel Window
Office Error Code 80070490 WindowsUpdate_dt000 Office 365 step 7
Office Error Code 80070490 WindowsUpdate_dt000 Office 365
3) Click On “Turn Windows Firewall on or off”
Office Error Code 80070490 WindowsUpdate_dt000 Office 365 img 9
Note: You will need Administrator privileges to disable firewall.
Office Error Code 80070490 WindowsUpdate_dt000 Office 365 img10
4) Under “Home or Work Network Location Settings” And “Public Network Location Settings” Click On “Turn Off Windows Firewall”
Office Error Code 80070490 WindowsUpdate_dt000 Office 365 img11

Step 2: Temporarily turn off Proxy Settings

1) Open Control Panel.
Microsoft Windows 7 : Click On Start and then Click On Control Panel from Right window.
Windows 8 : Press Windows key + R and type “Control” and Press Enter.
Office Error Code 80070490 WindowsUpdate_dt000 Office 365 img 9
2) Click On “Internet Options” In Control Panel Window.
3) Select Connections Tab and then Click On LAN Setting.
Office Error Code 80070490 WindowsUpdate_dt000 Office 365 img 11
4) Turn off “Use a proxy server for your LAN” if its switched ON.

Step 3: Check System Integrity

1) Press Windows + R
Office Error Code 80070490 WindowsUpdate_dt000 Office 365 img14
2) Type cmd and Press Enter.
Office Error Code 80070490 WindowsUpdate_dt000 Office 365
3) Type “sfc /scannow” and press enter.
Office Error Code 80070490 WindowsUpdate_dt000 Office 365 img18
Note:
Step 3:Check System Files For Error
1) Press Windows + R
Office Error Code 80070490 WindowsUpdate_dt000 Office 365
2) Type Cleanmgr and Press Enter.
Office Error Code 80070490 WindowsUpdate_dt000 Office 365 img19
3) Select the OS Drive and Press OK.
4) Click on Clean up System Files

Step 4: Try the installation again

In most case 80070490 WindowsUpdate_dt000 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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