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Windows blocked software because it can't verify publisher

Anonymous
2009-10-24T04:14:22+00:00

when i try to install add-on i get this,

    Internet Explorer Add-on Installer - Security Warning

    Windows has blocked this software because it can't verify publisher.

       Name; canvidplayer8.2.cab

       Publisher;  Unknown Publisher

i have used the site, add-on and the software many times before with no problems. i trust the web site and

have it in Trusted Sites. i even lowered the security level to allow Unsigned Active controls to be downloaded.

i don't understand why i was able to download before, but not able to now.

any solutions  to my problem would be appreciated.

                                           thank you,

                                                          therayman

Windows for home | Previous Windows versions | Apps

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Anonymous
2009-10-26T03:02:54+00:00

Hi therayman,

a)      Did you make any changes to the computer recently link installing/uninstalling/upgrade?

Try the below methods which may resolve your issue.

1.       Open Internet Explorer.

2.       Click on Tools and select Internet Options.

3.       Under Privacy tab click on settings button.

4.       Now enter the website address in the box labeled Address of the website to allow:

5.       Click on Add button.

6.       Close the Pop-up blocked settings and Internet Options windows.

Now try visiting the website again.

If you still have the problem then follow the below steps and let me know if it works.

1.       Open Internet Explorer.

2.       Click on Tools and select Internet Options.

3.       Under Advanced tab scroll all the way to the bottom to the Security section.

4.       Check the third box down “Allow software to run or install even if the signature is invalid”.

5.       Click OK to close out the dialog box

Hope this information is helpful.

Thanks and Regards:

Umesh P - Microsoft Support

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Anonymous
2013-08-23T17:06:45+00:00

hit compatibility mode in the address bar ... worked no problem for me

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19 additional answers

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  1. Anonymous
    2013-08-27T00:11:11+00:00

    OK, So I did all this and I still cant get itunes to down load. I have Vista (sorry to say) and trend security. HELP !!

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  2. Anonymous
    2012-12-31T01:14:54+00:00

    I have tried all of these too!  I have windows 8 but, I have the same issue.  I am trying to open an Internet based website that uses java applications and there is one specific add-on that windows has blocked.  Windows blocked the add-on because, it can't verify the publisher. I have the security settings to low, turned off all of the settings, did all of the things listed above, and it still won't work.  I need this add-on so that I can go to the website for work. (Grade entering website)

    Note:  I usually use firefox for this program but, windows 8 won't download the browser [yet one more flaw]

    Meaningless Rant:   I really wish at this point that I had not gone with windows 8....seems like flaw, after flaw, after flaw (Which in turn means...google for a solution, pray for a Band-Aid, Search for someone with a similar problem with some sort of fix)

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  3. Anonymous
    2011-09-15T23:43:06+00:00

    I tried all of these, it still has the message....Windows has blocked this software because it can't verify the publisher.

    I don't have have any problems with this IP Camera using Windows 7 Home on my laptops or other computers using Windows XP.

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