microsoft powerpoint 2007 viewer not working

Sometimes windows Powerpoint 2007 stops working and there may be several reasons. It may happen due to some virus or due to the OS files getting corrupted or it may be happen due to the software that you have installed recently. So to find out the reason which caused the Powerpoint to stop, first of all check the status of your antivirus. If it is updated and working very well than recall the software that you have recently installed, uninstall the software and re-install it. If the Powerpoint 2007 resume its services than it is ok, if still it doesn't than it is because your OS is corrupt format the disk in which you have installed the Operating System and re-install the windows. Install your Microsoft Powerpoint 2007 again.