Windows 7 - opera10.63 can not download any software

exe files can not be downloaded, like PDF WORD etc were fine.

what's wrong ?

Lets test
Try with IExplorer. Does it work?

Install a download manager . FlashGet is not a bad option .

chrome firefox ie all fine ,except opera.

The problem appears to be with Opera. Have you considered uninstalling and then installing again. The process should begin with a system restore point, just in case you are not happy with the results.
Did Opera ever work?

it was fine before with older version, it had problem after update it to the latest, i even downloaded the 10.62 to replace the current one, the problem remain the same.

Sounds like it is the update. If so, we will begin to get many complaints. Eventually the right solution will be uncovered, if a patch is not sent out first.

You might try to see if it's a new "feature".

If you have IE's "Internet Zone" set to maximum protection, you can DL but not run ANY program DLed from the net through it. It's an extreme saftey feature, great for use on public machines or with kids.

Opera may have a similar feature which is on by default in this version?

Sounds like a Firewall problem to me I've never had problems downloading .exe files
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You should never upgrade back to a previous version of Opera.
Why not Uninstall Opera & then install a New version 10.63 but use Opera Link to synchronize your Bookmarks,Personal Bar , Speed Dial , Notes & Search engines first.
There is a link to your My Opera Link Page from the Link button to check everything is backed up.

i fully uninstalled the opera10.63,and reinstalled it again, the problem remain the same.