Unable to click on link (hyperlink) on any MS office program (outlook, excel, word, powerpoint, etc...)

Error message when clicking on a link in outlook:
"this operation has been cancelled due to restrictions in effect"

Solutions:


1. Close Outlook
2. Open Internet Explorer.
3. On the Tools menu, click Internet Options.
4. Click the Advanced tab, and then click the Reset button.
5. On the Programs tab, under Internet programs, click Set Programs, then “Set your Default Programs”,     select your e-mail program and click “Set this program as Default”. Repeat for Internet Explorer.
6. Click OK and close the dialogs.

->If that doesn't fix it try this


1. Start, click Run, type Regedit in the Open box, and then click OK.

2. Browse to HKEY_CURRENT_USER\Software\Classes\.html

3. Right click the value for the .html key and select Modify…

4. Change the value from “ChromeHTML” to “htmlfile” (or from FireFoxHTML to htmlfile)

Value for Chrome = "ChromeHTML" 
Value for Internet Explorer = "htmlfile"
Value for FireFox = "FireFoxHTML"

     - change value to what default browser you want

5.Check the following registry keys if needed:

HKEY_CURRENT_USER\Software\Classes\.html
HKEY_CURRENT_USER\Software\Classes\.htm
HKEY_CURRENT_USER\Software\Classes\.shtml
HKEY_CURRENT_USER\Software\Classes\.xht
HKEY_CURRENT_USER\Software\Classes\.xhtml


source: http://www.slipstick.com/problems/this-operation-has-been-cancelled-due-to-restrictions#set