Hi,
For issues with Internet explorer I would suggest you to use the desktop Internet explorer and check you are able to access the websites.
Follow the steps mentioned in the link below to troubleshoot if internet explorer is not working:
What to do when Internet Explorer isn't working
http://windows.microsoft.com/en-us/internet-explorer/ie-crashes-stops-working#ie=ie-11
Disclaimer: Resetting Internet Explorer settings will not affect your browsing history, unless you select the Delete personal settings check box during reset. If you only want to view or delete your browsing history, you don't need to reset all Internet Explorer settings.
For issues with Offline files, I would suggest you to perform a clean boot on your computer:
How to perform a clean boot in Windows
http://support.microsoft.com/kb/929135/en-us
Note: After troubleshooting, refer to this section "How to reset the computer to start normally after clean boot troubleshooting"
Hope this helps, please reply for further assistance on windows.
Thank you.