Microsoft Office 365 Installation Activation Tutorial and a Quick Introduction to Getting Started

The difference between Office 2019 and Office 365

Key differences:

  • Functional: Office 365 is always up to date, while Office 2019 cannot be upgraded across versions
  • Price: Office 365 pays annually, while Office 2019 is available for a permanent fee.

For more details:

ProductOffice 2019Office 365
CostOne-time purchase, permanent usePay-per-year
FunctionNo functional updates, only security accumulation updatesContinuous updates
Number of installations1 set5 sets
ReinstallReinstall is not supported if key is lostFree online management of authorized device re-installation through Office accounts
Network storageNo1000G OneDrive capacity
Artificial intelligenceDoes not support networkingArtificial intelligence support such as smoothing, design inspiration

Purchase suggestion: Office 365 contains the best and most complete office services, while other desktop versions have many feature limitations. Microsoft officially invests its main resource features in Office 365, so it’s highly recommended to use Office 365.

Microsoft Office Professional Plus 2019 Product Key

How to completely uninstall Office and clean up the remnants

This cleanup method applies to all versions of MS Office, including Office 2003, Office 2007, Office 2010, Office 2013, Office 2016, Office 2019, and Office 365.

Office is hard to clean and uninstall, and there will always be some. If the uninstallation is not clean, there will be a bad situation. For example, the old version of Office cannot be used, and the new version of Office cannot be installed. It’s really embarrassing, and users can’t install it anymore except reinstalling the system.

The solution:

The program (microsoft office removal tool download) below is an official uninstallation tool developed by Microsoft and Lenovo. It can quickly clean up the old version of office.

Step 1: Download and install the uninstall tool

To uninstall office 2007/2010/2013/2016/365, please click on the link below:

If you want to uninstall office 2003, click on the link below:


Step 2: Run the software

Download a compressed package, click the right mouse button to extract the compressed package, and then install this tool.

After the uninstallation is complete, run ccleaner to clean up the computer garbage, and then restart the computer to do a clean install the office.

Office 365 quick installation simple tutorial

Before installation:

  • Uninstall the old version of the office software (if you have WPS, uninstall it)
  • Clean up the garbage in the registry with software such as ccleaner
  • Restart your computer and follow the next installation tutorial

Get an Office account:

Start the installation:

  1. Once you’ve logged in to, click the link in the upper right corner of the page to download and install office app.
  2. Install the .exe file you just downloaded
  3. The installation speed is related to the speed of the network, please be patient.