Hi Ali,
Thank you for reaching out to the Microsoft Community!
Based on the description, it appears that you are having network connectivity issues while downloading apps on Windows 8.
I can understand the inconvenience caused to you. I will certainly help you out with this issue.
Here are few methods that you may try in order to fix the issue.
Method 1: First, run the network troubleshooter to check for any Internet connectivity issues.
a. Press the ‘Windows + W’ key on the keyboard; this will bring the search interface.
b. Click ‘Troubleshooting’ in the search result.
c. Under ‘Troubleshoot computer problem’ click on ‘Network and Internet’.
d. Click on ‘Network Adapter’ to start the troubleshooter.
Method 2: Clear the store cache and check.
a. Press "Windows key + R".
b. Type wsreset.exe and click OK.
Method 3: Disable the proxy server and check.
a. Open Internet Explorer
b. Click Tools and then click
Internet Options.
c. Then click the Connections tab.
d. Then click the LAN Settings button.
e. Then Uncheck the option which reads” Use a proxy server for your LAN”
f. Click apply and then
ok.
Method 4: Perform clean boot and check.
How to perform a clean boot to troubleshoot a problem in Windows Vista, Windows 7, or Windows 8
http://support.microsoft.com/kb/929135
Please note: After the troubleshooting, make sure to boot your computer to normal mode by following the step 3.
For more information, refer to the links.
What to do if you have problems with an app
http://windows.microsoft.com/en-us/windows-8/what-troubleshoot-problems-app
Why can't I find or install an app from the
Windows Store?
http://windows.microsoft.com/en-IN/windows-8/why-find-install-app-windows-store
If anything in my post is unclear or you have further questions on Windows, do not hesitate to let us know. It is our pleasure to be of assistance.