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Unable to install

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I downloaded Firefox 12 but when I try to installi the computer posts the following message: Windows cannot access the specified device, path or file. You may not have appropriate permission to access the item.

I downloaded Firefox 12 but when I try to installi the computer posts the following message: ''Windows cannot access the specified device, path or file. You may not have appropriate permission to access the item''.

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If you have a firewall disable it and try again, see: Firewalls

see also: Configuring Windows Firewall in Windows XP


thank you

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