Hey there Hannuj,
It sounds like you are unable to access the iTunes Store in the iTunes application. Based on the error message I would try the steps in the article here named:
iTunes for Windows: iTunes Store connection troubleshooting
http://support.apple.com/kb/HT1527
Some pop-up or ad-blocking programs may interfere with the ability of iTunes to connect to the iTunes Store. Removing them in many cases will resolve the issue.
In some cases, the DNS information you computer uses to connect to the Internet needs to be reset. Follow these instructions to flush your Windows DNS information:
- On the Start menu, click Run.
- In the Open field type cmd and click OK.
- In the resulting window, type ipconfig /flushdns and press Return on the keyboard.
- You should see a message that the DNS Resolver Cache has been successfully flushed.
- On the Start menu, point to All Programs > Accessories and then right-click Command Prompt and chooseRun as Administrator from the shortcut menu. If Windows needs your permission to continue, clickContinue.
- In the resulting window, type ipconfig /flushdns and press Return on the keyboard.
- You should see a message that the DNS Resolver Cache has been successfully flushed.
Note: If, in the command prompt, you see this message: "The requested operation requires elevation", close the command prompt and repeat steps 1 and 2 above to be sure that Administrator privileges are used to access to Command Prompt.
See the following articles for additional troubleshooting information on connecting to the iTunes Store:
Thank you for using Apple Support Communities.
Regards,
Sterling