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.

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

Can't install FF 45.0.2 on Win 7, although 2 PCs on Win XP accepts. WHY?

  • 2 replies
  • 1 has this problem
  • 3 views
  • Last reply by agataloca

more options

I have 3 PCs; two of them win Win XP SP3, one with Win 7 SP1. I think all of them prompted about the update to 45.0.2, but only the two XP machines updated properly. The Win 7 failed. It also refuses to force download it if I try manually. Why? It's illogic.

It says "The Update could not be installed (patch apply failed)" and to update it manually, which I can't.

I have 3 PCs; two of them win Win XP SP3, one with Win 7 SP1. I think all of them prompted about the update to 45.0.2, but only the two XP machines updated properly. The Win 7 failed. It also refuses to force download it if I try manually. Why? It's illogic. It says "The Update could not be installed (patch apply failed)" and to update it manually, which I can't.

Modified by agataloca

Chosen solution

Stupid Win 7 had to be told to Run the program as Administrator EVEN if I have Administrator privileges already, plus put the UAC on lowest level. I'd tried and done just about everything except that, as it shouldn't be necessary given the other settings. Grr.

Read this answer in context 👍 0

All Replies (2)

more options

--- Edited

Modified by agataloca

more options

Chosen Solution

Stupid Win 7 had to be told to Run the program as Administrator EVEN if I have Administrator privileges already, plus put the UAC on lowest level. I'd tried and done just about everything except that, as it shouldn't be necessary given the other settings. Grr.