Uninstall & Reinstall Issues

How to Remove a Company Microsoft 365 Account and Reinstall on Windows 11

Algirdas JasaitisAlgirdas Jasaitis Oct 28, 2026 869 views

Question details

The user needs to remove a former employer's Microsoft 365 credentials and installation from Windows 11 in order to switch to a personal Microsoft account.

How to Remove a Company Microsoft 365 Installation from Windows 11
Product
Microsoft 365
Device & OS
Windows 11
Scenario
Switching from a corporate Microsoft 365 account to a personal account after leaving an employer.
Observed behavior
Office applications like Outlook are still linked to or prompting for the former organization's login credentials.
Before you start

Ensure you have the login credentials for your personal Microsoft account ready and check that any locally saved Outlook data files or documents tied to the corporate account have been safely backed up.

Solution 1Recommended

Use the Microsoft Support and Recovery Assistant (SaRA) Tool

The most effective method to completely scrub former corporate credentials and Office files from your Windows 11 PC.

A standard uninstallation often leaves behind cached corporate credentials in the Windows registry, causing Outlook to repeatedly ask for your old company password. Using Microsoft's official uninstall support tool ensures a clean slate.

1
Download the uninstall tool

Navigate to https://aka.ms/SaRA-officeUninstallFromPC in your web browser to download the Microsoft Office uninstall support tool.

2
Run the uninstaller

Open the downloaded file, follow the on-screen prompts to select your corporate Microsoft 365 installation, and confirm the removal.

3
Restart your computer

Once the tool finishes processing and completely removes the software, restart your Windows 11 computer when prompted.

4
Reinstall with a personal account

Go to www.office.com, sign in with your personal Microsoft account, and click 'Install Office' to download and set up Microsoft 365 anew.

Use the Microsoft Support and Recovery Assistant (SaRA) Tool
Credential Cleanup Complete: This process ensures that all lingering registry keys and corporate login prompts in Outlook are completely eradicated.
Free Microsoft Office alternative

Switch to WPS Office for a Hassle-Free Experience

Tired of dealing with complex Microsoft 365 account switches, subscription limitations, and stubborn corporate credential conflicts? WPS Office offers a free, lightweight, and user-friendly alternative that requires no complicated account management.

  1. 1. Download WPS Office: Visit the official WPS website and download the free installer for Windows.
  2. 2. Install the software: Run the installer and follow the quick setup guide to install the all-in-one suite in seconds.
  3. 3. Open your files: Double-click any existing DOCX, XLSX, or PPTX file to instantly open and edit them in WPS Office without pesky account credential prompts.
Completely free to use without worrying about overlapping corporate and personal subscriptions.Highly compatible with standard Microsoft Office formats, including DOCX, XLSX, and PPTX.Lightweight installation that will not leave conflicting corporate registry keys on your system.All-in-one suite combining Word, Excel, PowerPoint, and PDF tools in a single, clean interface.
microsoft office alternative - wps office

Frequently Asked Questions

Why does Outlook still ask for my old company password after uninstalling?

A standard uninstall often leaves credential caches in the Windows Credential Manager or registry. Using the Microsoft Support and Recovery Assistant (SaRA) tool ensures these hidden corporate credentials are fully removed before you reinstall.

Will removing my company's Microsoft 365 delete my personal files?

No, uninstalling Microsoft 365 only removes the application software. Your locally saved documents, spreadsheets, and presentations will remain completely intact on your computer's hard drive.

Do I have to buy a new subscription to reinstall Microsoft 365?

If you wish to continue using Microsoft 365 features, you will need an active personal or family subscription tied to the personal Microsoft account you use to sign in at www.office.com.

Can I use both a company and personal account on the same PC?

Yes, Microsoft 365 allows you to add multiple accounts. However, if you have left the company, it is highly recommended to completely remove the corporate installation to avoid credential conflicts and unauthorized access prompts.