Instruction at ox745f2780 reference memory at 0×00000000 memory cannot be read

Nowadays some computers getting the error
"Instruction at ox745f2780 reference memory at 0×00000000 memory cannot be read"
and also sound will lost.
How to fix this error?
For CiceroUiwndFrame error which is due to a problem in CiceroUiwndFrame, the speed and handwriting recognition part of Office XP. To uninstall it1. Go to Control panel ----> add and remove programs
2. Select Microsoft Office XP Professional with FrontPage and click on "change" option
3. Select Office shared features ---> Alternative user input --->Speech and Handwriting
Recognition . Deselect both the options.

For Iexplorer.exe application error, the error may be due to faulty Add-ons
1. In the Internet Explorer menu, go to "Tools->Manage Add-ons"
2. You will get a list of all the add-ons loaded for Internet Explorer. Add-on software where no publisher is specified could be spyware.
3. Select each add-on and disable it. If any particular add-on is essential, you may keep it enabled and check the problem persists. If there is no problem, you can continue with the add-on, else you may have to remove all add-ons.