This is very common error since the release of Windows 7 and Internet Explorer 8; we thought we had a major virus but this turned out not to be the case. There are some security settings that need to be tweaked inside the Internet Options to allow downloads again.
“your internet security settings prevented one or more files from being opened”
Problems Opening Files on LAN
You may get the “these files cannot be opened” error when opening files on a network drive.
Control Panel –> Internet Options –> Security Tab
I unchecked them all and it works! The “your internet security settings prevented one or more files from being opened” didn’t block me and I can now open files on network drives.
Problems opening files in Internet Explorer, Firefox & Windows Explorer
Setting these for both the Internet and Intranet settings should take care of the file open problems. The setting I discovered during my troubleshooting is “Launching applications and unsafe files”. This can be set in two places depending on your network setup.
Change the settings in Internet Options
This is an error from Internet Explorer security settings found under your “Tools” –> “Internet Options” –> “Security” tab –> “Local intranet” or “Internet”.
Make sure you can download files
You may also need to enable File download to get past the “these files can’t be opened” inside the Internet Properties.
Change this is Group Policy
If you operate in a domain you will need to add the settings to a new GPO to remove the “your internet security settings prevented one or more files from being opened” error from all network systems at once. This method worked for me.
Open your Group Policy Management Editor and either create a new IE8 Policy or use an existing one and go to User Configuration –> Policies –> Administrative Templates –> Windows Components –> Internet Explorer –> Internet Control Panel –> Security Page –> Internet Zone –> Launching programs and unsafe files
You should do this for both Internet zone and Intranet zone.
Source: [Updated] These files can’t be opened. Your Internet security settings prevented one or more files from being opened – Solved | iLERTECH - Android, WordPress, PHP, JavaScript, C#, .NET, Windows, Java, Apache
I hope this helps!
Brett M,
Windows Outreach Team
Thread Starter OMGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG
thanksssssssssssssssssssssssssssssssss
I am experiencing these problems all of a sudden too!!! (My system worked fine yesterday, today I can't play The Sims 3 and can't install antivirus software. I followed the above instructions, but it is still happening. I have run virus/spyware checks and they are clean.
I don't know what to do - there is obviously something wrong.
[lang=it]Sei riuscito a risolvere il problema!?!? Anche a me è capitata la stessa cosa!!![/lang]
Were you able to fix it!?!? Me too & # 232; the same thing happened!!! (translation)
Last edited by Adamsappleone; 11-07-2012 at 06:25 AM. Reason: posted translation
My problem is fixed now! It seemed to be the latest windows definitions update for windows defender. I have turned off windows defender and everything is running ok now (fingers crossed it stays that way!!!)
Last edited by Adamsappleone; 11-07-2012 at 06:37 AM. Reason: Removed language format from this and subsequent post titles
Bonjour,
Malgre le fait d'avoir suivi la lettre votre solution j'ai toujours le meme probleme, des que je veux installer un jeu ou autre programme, me donne la meme erreur "Impossible d'ouvrir ce fichier vos parametres internet ont empeche l'ouverture... Et en plus j'ai des saloperies de fenetres popup de pub qui s'ouvrent. SVP aidez moi. merci:-B
Translation:
Despite the fact that they followed the letter your solution I still have the same problem, and I want to install a game or other program, gives me the same error "unable to open this file your internet settings have prevented the opening..." And in addition I have crap of popup ad Windows that open. Please help me. Thank you: b
Last edited by Adamsappleone; 11-07-2012 at 06:27 AM.
try disabling Windows Defender. It worked for me.
Last edited by Adamsappleone; 11-07-2012 at 06:38 AM.
Last edited by Adamsappleone; 11-07-2012 at 06:38 AM.
Bonjour, jai le meme probleme et jai faite tout les étapes... et ca ne fonctionne pas... je suis rendu au windows defender... mais je sais pas cest quoi! Mon ordi est en francais!merci
Translation:
Hello, I the same problem and I made all the & #233; tapes... and it does not work... I went to the windows defender... but I dunno cest what! My comp is in French! Thank you
Last edited by Adamsappleone; 11-07-2012 at 06:30 AM.