Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Windows update error 80070643

  • 2 replies
  • 2 have this problem
  • 7 views
  • Last reply by FredMcD

charles
charles
more options

I continue to get a message saying that I need to install a Windows Update. I saw a message saying that the update was blocked by FireFox. Am using Windows 7 Ultimate, Service Pack 1 Error Code is 80070643, and information is KB3035583 What can I do. Thank you, Charles Topping

I continue to get a message saying that I need to install a Windows Update. I saw a message saying that the update was blocked by FireFox. Am using Windows 7 Ultimate, Service Pack 1 Error Code is 80070643, and information is KB3035583 What can I do. Thank you, Charles Topping

All Replies (2)

Michal Stanke
Michal Stanke
more options

Hi Charles.

What's the whole text of the error message saying the update was blocked by Firefox, please?

FredMcD
FredMcD
more options

Firefox could not block a Windows update. Such updates are done thru Windows updating programs only.

Bing search; https://www.bing.com/search?q=KB3035583&pc=MOZI