How to fix error AADSTS90100: Login parameter is empty or not valid error in Windows?

Issue: Hello. I wanted to access my Microsoft account on my browser to change a few settings but I couldn't because of the AADSTS90100: Login parameter is empty or not valid error. How do I access my account now?

Solved Answer

Microsoft accounts are essential for millions of users globally. They serve various purposes, including accessing emails, working on documents, managing subscriptions, and synchronizing data across devices. With such widespread usage, Microsoft accounts become a central part of many people's daily activities.

However, these accounts are not without issues. Sometimes, users find themselves unable to access their account settings. A common cause of this hindrance is the AADSTS90100: Login parameter is empty or not valid error. This error can be particularly frustrating, leaving users stranded and unable to access essential services.

Several underlying factors might trigger the AADSTS90100 error. One significant cause is the corrupted browser cache. This happens when the stored information conflicts with the current login attempt, leading to the error. The issue may also arise from the simple input of incorrect account credentials. If the user enters a wrong username or password, the system detects it as an invalid parameter, thus triggering the error.

Tool servers being down can also lead to this problem. Specifically, when the servers responsible for authentication are down or facing technical difficulties, users can encounter this error. These are not the only causes, but they are among the most common, leading to the need for effective solutions.

How to fix error AADSTS90100: Login parameter is empty or not valid error in Windows?

Although the error can create barriers for users to access their Microsoft accounts, it is typically symptomatic of underlying issues that can often be rectified. Solutions exist, and although they are beyond the scope of this article, they often involve addressing the root causes listed above.

For those looking for a comprehensive fix to this and other Windows-related issues, using FortectMac Washing Machine X9 PC repair tool may be suitable. This tool is designed to address most of the general Windows issues automatically, providing an efficient way to keep systems running smoothly.

Fix 1. Verify account credentials

Incorrect login credentials can directly trigger the error. Verifying and ensuring that the credentials are correct can eliminate this as the cause.

  • Check the username and password for typos.
  • Ensure that the account is active and not locked.
  • Attempt to log in again with the correct credentials.
  • If forgotten, follow the password recovery process on the login page.
  • If you are using a school or work account, contact your administrator.

Fix 2. Clear browser cookies and cache

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Fortect Mac Washing Machine X9.

Clearing browser cookies and cache can resolve conflicts with stored information that might interfere with login attempts. This action essentially removes any outdated or corrupted data that may be causing the AADSTS90100 error.

Google Chrome

  • Click on Menu () and pick Settings.
  • Under Privacy and security, select Clear browsing data.
  • Under time range, pick All time.
  • Select Browsing history, Cookies and other site data, and Cached images and files.
  • Click Clear data.

Clear cache and cookies

Mozilla Firefox

  • Open Mozilla Firefox.
  • Click the three lines icon () located at the top-right corner of the window.
  • Click on Settings from the dropdown menu.
  • In the left-hand menu, click on Privacy & Security.
  • Scroll down to locate the Cookies and Site Data section.
  • Click Clear data…
  • Mark the Cookies and Site Data, as well as Cached Web Content checkmarks, and click Clear.

Microsoft Edge

  • Open Edge and click on three horizontal dots () (Settings and more).
  • Pick Settings.
  • Click Privacy, search, and services on the left.
  • On the right side of the window, scroll down to find the Clear browsing data section.
  • Click Choose what to clear.
  • Select All time.
  • Pick all the sections and click Clear now.

Fix 3. Clear cache of the app you're trying to log in to

The application-specific cache could also lead to login issues. Clearing the app cache ensures that any temporary data that might be conflicting with login parameters is removed.

It is important to note that instructions for cleaning the cache of apps depend on which app you are using. For example, for Microsoft Store, use the following instructions:

  • In Windows search, type wsreset and press Enter.
  • Wait till a black window shows up – do not close it.
  • As soon as it closes, the store should be reset and will reopen.
  • Try updating or downloading apps again.

Clear cache in Store

For other apps, follow these general steps:

  • Open the application settings or preferences.
  • Find the option to clear cache or temporary files.
  • Click on the clear cache or similar option.
  • Confirm the action if prompted.
  • Restart the application if necessary.

Fix 4. Run network troubleshooter

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Fortect Mac Washing Machine X9.

Running the network troubleshooter can detect and automatically resolve issues with the network settings, which might be preventing successful login.

  • Right-click on Start and pick Settings.
  • Go to Network & Internet section.
  • On the right side, find the Advanced network settings section.
  • Click Network troubleshooter and wait.
  • The fixes will be automatically applied.

Network troubleshooter

Fix 5. Reset network settings

Resetting network settings to their default can help eliminate any customized configurations that might be causing conflicts with Microsoft's servers during the login process.

  • Open the Settings app.
  • Navigate to Network and internet.
  • Click on Network reset.
  • Confirm by clicking on Reset now.
  • Restart the computer if required.

Reset network

Repair your Errors automatically

ugetfix.com team is trying to do its best to help users find the best solutions for eliminating their errors. If you don't want to struggle with manual repair techniques, please use the automatic software. All recommended products have been tested and approved by our professionals. Tools that you can use to fix your error are listed bellow:

Offer
do it now!
Download Fix
  Happiness
Guarantee
do it now!
Download Fix
  Happiness
Guarantee
Compatible with Microsoft Windows Compatible with OS X
Still having problems?
If you failed to fix your error using FortectMac Washing Machine X9, reach our support team for help. Please, let us know all details that you think we should know about your problem.
Fortect - a patented specialized Windows repair program. It will diagnose your damaged PC. It will scan all System Files, DLLs and Registry Keys that have been damaged by security threats.Mac Washing Machine X9 - a patented specialized Mac OS X repair program. It will diagnose your damaged computer. It will scan all System Files and Registry Keys that have been damaged by security threats.
This patented repair process uses a database of 25 million components that can replace any damaged or missing file on user's computer.
To repair damaged system, you have to purchase the licensed version of Fortect malware removal tool.To repair damaged system, you have to purchase the licensed version of Mac Washing Machine X9 malware removal tool.

Access geo-restricted video content with a VPN

Private Internet Access is a VPN that can prevent your Internet Service Provider, the government, and third-parties from tracking your online and allow you to stay completely anonymous. The software provides dedicated servers for torrenting and streaming, ensuring optimal performance and not slowing you down. You can also bypass geo-restrictions and view such services as Netflix, BBC, Disney+, and other popular streaming services without limitations, regardless of where you are.

Don’t pay ransomware authors – use alternative data recovery options

Malware attacks, particularly ransomware, are by far the biggest danger to your pictures, videos, work, or school files. Since cybercriminals use a robust encryption algorithm to lock data, it can no longer be used until a ransom in bitcoin is paid. Instead of paying hackers, you should first try to use alternative recovery methods that could help you to retrieve at least some portion of the lost data. Otherwise, you could also lose your money, along with the files. One of the best tools that could restore at least some of the encrypted files –  Data Recovery Pro.

About the author
Gabriel E. Hall
Gabriel E. Hall - Passionate computer expert

Gabriel E. Hall is an expert troubleshooter who has been working in the information technology industry for years.

Contact Gabriel E. Hall
About the company Esolutions

What you can add more about the problem: "How to fix error AADSTS90100: Login parameter is empty or not valid error in Windows?"