How to Fix HTTP Error 400 on Hotmail – Quick Solutions
If you’re trying to access Hotmail (Outlook.com) and see HTTP Error 400 – Bad Request, it means that your browser or device sent a request that the server couldn’t process. This issue can prevent you from logging in, sending emails, or accessing your inbox.
In this guide, we’ll explain what causes the Hotmail HTTP 400 error and provide step-by-step solutions to fix it.
What Causes HTTP Error 400 on Hotmail?
🔹 Corrupt Cookies & Cache – Old or damaged browser data can interfere with website requests.
🔹 Incorrect URL – A mistyped or outdated link may trigger this error.
🔹 DNS or Network Issues – A weak or unstable internet connection can cause request failures.
🔹 Browser Compatibility Problems – Some outdated browsers struggle to load Hotmail properly.
🔹 Server-Side Issues – If Hotmail’s servers are down, you may experience error 400.
How to Fix HTTP Error 400 on Hotmail
1. Refresh the Page & Check the URL
🔹 Press F5 or Ctrl + R to refresh Hotmail.
🔹 Make sure the URL is correct:
✅ Correct: https://outlook.live.com/
❌ Incorrect: https://hotmail.com/login.html (Old URLs may not work).
2. Clear Browser Cache & Cookies
Cached data and cookies can cause login problems.
✅ Steps for Chrome & Edge:
1️⃣ Open Settings > Privacy & Security.
2️⃣ Click Clear Browsing Data.
3️⃣ Select Cookies and Cached Images/Files.
4️⃣ Click Clear Data, then restart the browser.
✅ For Firefox & Safari: Similar steps apply—clear cache and cookies from settings.
3. Try a Different Browser or Device
If Hotmail isn’t loading on your current browser:
🔹 Try Google Chrome, Mozilla Firefox, Microsoft Edge, or Safari.
🔹 Access Hotmail from a different device (PC, phone, tablet).
4. Restart Your Router & Check Internet Connection
🔹 Restart your router and reconnect.
🔹 Use a different Wi-Fi network or switch to mobile data.
🔹 Run a speed test to check your connection quality.
5. Disable Extensions & VPNs
Some browser extensions, VPNs, or proxies can block Hotmail’s servers.
✅ Disable all extensions and try loading Hotmail again.
✅ If using a VPN, turn it off and refresh the page.
6. Flush DNS & Reset Network Settings (Windows Only)
If the issue persists, reset your network settings:
1️⃣ Open Command Prompt (Admin)
2️⃣ Type the following commands:
ipconfig /flushdns
ipconfig /release
ipconfig /renew
3️⃣ Restart your computer and try accessing Hotmail again.
7. Check Hotmail Server Status
If none of the fixes work, Hotmail servers may be down.
🔹 Visit Downdetector
🔹 Check Microsoft’s Service Status Page for outages.
🔹 If the servers are down, wait for Microsoft to fix the issue.
Final Thoughts
The HTTP Error 400 on Hotmail is usually caused by cache issues, incorrect URLs, or internet problems. By following these troubleshooting steps, you should be able to regain access to your Hotmail account quickly.
💡 Did these solutions work for you? Let us know in the comments!
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