Office Support

Talk To Experts

If you wish to get instant help, you can talk to our techs on chat.

How to Fix Error Installing Microsoft Office 2021/2019/365

Error installing Office 365/2019/2021  fails during the configuration phase. May occur if you were trying to add more Microsoft office products or corrupted system files or corrupted office installer file download or installer will not work in computer. Sometimes, restarting your computer is enough to solve the issues.


error installing office

Here is some process that you can try to fix Installation. But before proceeding a head first look the most common causes of this error code below

1.Check if the old office app is already installed on the PC. If so, uninstall and reinstall the app.

2. Install the package to folder that is not encrypted.

3.Grant Full Control permissions to the SYSTEM User Account

4.Firewall or antivirus software might be blocking the Office installation.

Following steps to easily Fix Microsoft error code 1603 in windows 10 or windows 11

Solution 1 : Temporarily disable windows defender to fix Error installing Office

  1. Click windows start button, type in Windows Security
  2. Open windows security window, Select Virus & threat in windows security window
  3. Select Manage settings, under the Virus & threat protection
  4. Switch Real-time protection to Off.

How to disable Antivirus software Temporarily

  1. Open Antivirus application (McAfee or Norton or AVG) installed on the computer.
  2. Select on settings and go to real time protection
  3. Select Turn Off real time protection
  4. Then, Navigate to Antivirus firewall and select Turn off Antivirus Firewall

Solution 2: SFC Scan to fix Error Installing Office

  1. Log in to an administrator to the Windows Terminal


  1. Type in SFC /SCANNOW on command window
  2. Wait for the scan to finish.

You will get the following message on the command windows “Windows Resource Protection may indicate that the SFC program detected no integrity issues or found corrupt or broken files but could not repair some of them.

If SFC finds no error, you can now exit the Windows Terminal console.

If Windows states there is an error “Windows Resource Protection discovered corrupt files but was unable to fix some of them” after performing the SFC command, then enter the below command.

Solution 3: Remove and reinstall office

Following the steps below:

How to install office

  1. Open Office My Account by going and Login to Office account using your registered email ID and password.
  2. Click on install Option under the Office product in your account.
  3. Save the installer setup files if prompted and run it once download is completed.
  4. Do not go offline or reboot the computer once installation is initiated.
  5. Click on finish button once the program is installed completely.

If this issue persists in windows 10 /11

In this case we need to reset windows 10 / windows 11 operating system. Follow the instruction below how to reset the PC.

Disclaimer: We recommend you do the back up before we proceed these steps, during reset Windows 11 and windows 10 installation means that all your files and settings will be lost during the reset process.

How to reset windows 10 ?

  1. Select Start > Settings > System > Recovery. Open Recovery settings.
  2. Next to Reset this PC, select Reset PC. Then choose from the options and/or settings in the table below.

How to reset windows 11 ?

  1. Select Start > Settings > System > Recovery. Open Recovery settings.
  2. Next to Reset this PC, select Reset PC. Then choose from the options and/or settings in the table below

In Conclusion,

If you have problem in doing this method, we recommend you to chat with our experts. I am sure they will guide you and help resolve this issue. You can also visit website for more details and information.

However, we give you assurance about your money and the service. If you like to see the procedure for a paid support, you may ask the Tech available online here on this page.

More details for this method at