The blog of Windows Wally, a Windows Support Technician helping common people solve frustrating computer problems.

How To Fix The Error 0x800ccc90 in Windows 10?

Reader Question:
“Hi Wally, I can’t seem to be able to receive mail from my Windows mail account. It was find yesterday. Now its asking me to verify the username and password. I didn’t change anything, it started doing this on its own. I get the following error 0x800ccc90. Do you know why this is happening? Thank you for your assistance.” – Vincent A., USA

Before addressing any computer issue, I always recommend scanning and repairing any underlying problems affecting your PC health and performance:

  • Step 1 : Download PC Repair & Optimizer Tool (WinThruster for Win 10, 8, 7, Vista, XP and 2000 – Microsoft Gold Certified).
  • Step 2 : Click “Start Scan” to find Windows registry issues that could be causing PC problems.
  • Step 3 : Click “Repair All” to fix all issues.

Setting up weekly (or daily) automatic scans will help prevent system problems and keep your PC running fast and trouble-free.

Wally’s Answer: Windows 10 usually runs stable, but there are times when things don’t work out as planned. These situations can result from many different combination of uses of the Windows operating system and installed software programs. But, this is inevitable to an extent in today’s world full of busy computers.

One thing we really depend on these days is email. Not being able to get your email can be a huge problem. Most people don’t know what to do when they see the 0x800ccc90 error in Outlook express. Luckily we should be able to get your email back to normal right here.


The user is unable to use email services and sees the 0x800ccc90 or IXP_E_POP3_RESPONSE_ERROR error in Outlook express.

0x800ccc90 -- Error - Cover - Windows Wally


Here are some ways to fix the 0x800ccc90 error.

Wait For The Problem To Be Resolved

The 0x800ccc90 IXP_E_POP3_RESPONSE_ERROR error results from an inability to get a valid response from the POP3 mail server. This might not be a problem on your end, especially if it seems to have started randomly. Please try waiting for the error to be resolved on the server side.

Change Proxy Settings

If you’re using the same computer at work or school, then you might have changed proxy settings to use the internet. Please try to change proxy settings especially if you’re unable to view any new websites on this computer.

Please Confirm Your Outlook Email Username and Password

Please confirm that the combination of username and password you’re using is correct. You can do this by logging into Outlook from your browser by visiting

I Hope You Liked This Blog Article! If You Need Additional Support on This Issue Then Please Don’t Hesitate To Contact Me On Facebook.

Is Your PC Healthy?

I always recommend to my readers to regularly use a trusted registry cleaner and optimizer such as WinThruster or CCleaner. Many problems that you encounter can be attributed to a corrupt and bloated registry.

Happy Computing! :)

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About the Author

Windows Wally is a helpful guy. It’s just in his nature. It’s why he started a blog in the first place. He heard over and over how hard it was to find simple, plain-English solutions to Windows troubleshooting problems on the Internet. Enter: Windows Wally. Ask away, and he will answer.