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. Jei jums reikia pagalbos, užduokite naują klausimą.

7zip blocks Firefox install

700PoundMozillaInTheRoom
700PoundMozillaInTheRoom
more options

Hi all. I'm logged into a Win 7 x64 Enterprise machine as an administrator and keep getting this error, with the title bar saying "7-Zip". I have 7zip installed on this machine but even uninstalling it didn't make any difference:

This program is blocked by group policy. For more information, contact your system administrator.

Hi all. I'm logged into a Win 7 x64 Enterprise machine as an administrator and keep getting this error, with the title bar saying "7-Zip". I have 7zip installed on this machine but even uninstalling it didn't make any difference: This program is blocked by group policy. For more information, contact your system administrator.

Chosen solution

Thanks, @cor-el. What's weird is that I'm able to run 7zip with no issues; it works just fine. So not sure why the Firefox installation would complain about it.

I'll try booting into safe mode and let you know. Thanks again.

Skaityti atsakymą kartu su kontekstu 👍 0

All Replies (4)

Wesley Branton
Wesley Branton
more options

In order to download Firefox, you may need to signed into an administrator account on your system. Otherwise, you may not have permission to install Firefox.

You can find more information about group policies on the Microsoft website:

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Firefox is offered as a self extracting 7-ZIP archive, so it is possible that for some reason 7-ZIP is blocked on the computer.

Boot the computer in Windows Safe mode with network support to see if that has effect in case security software is causing problems.

700PoundMozillaInTheRoom
700PoundMozillaInTheRoom Klausimą uždavęs asmuo
more options

Chosen Solution

Thanks, @cor-el. What's weird is that I'm able to run 7zip with no issues; it works just fine. So not sure why the Firefox installation would complain about it.

I'll try booting into safe mode and let you know. Thanks again.

700PoundMozillaInTheRoom
700PoundMozillaInTheRoom Klausimą uždavęs asmuo
more options

Booting in safe mode allowed me to install Firefox with no issues. Thanks again for your help, @cor-el! Still not sure why Windows was choking.