I have used MS EE4 SC since 2012 without issue other than the usual occasional pc freezes if too many other windows are open and sudden shutdowns from overheating, it has always opened and worked well the next time I started up. I have not had any viruses or any software fail to work in all that time. Last week I opened too many BBC news pages at once while using Encoder which caused the laptop to choke as these webpages use too many animated adverts and slow the system down to virtually nothing. After 10 minutes I decided to close things down using task manager and closed Encoder as well. When I rebooted the next day I found that Encoder would not load at all. The dialog box that usually opens up failed to do so while the icon on the taskbar did open up and expand but the actual application would not come up. If I held the cursor over the taskbar icon it would show the program's taskbar in miniature but when clicked, did not do anything. Right clicking on it and selecting Open did nothing. There was nothing that would open it. Selecting it from the Start Menu made no difference. I tried searching for similar problems and went to the MS forum when I saw a similar though not exact issue someone had. In the end I tried to reinstall it. I have the original exe file saved and also downloaded the one suggested by Microsoft. There was even another file with an .msi extension offered. I first tried the repair option which did nothing, I unistalled it through control panel and reinstalled both the original and newer exe files and it simply gets back to the same stage of showing up without opening. I cannot understand why it doesnt work or was possibly corrupted in the first place... but that it wont reinstall and work is the dilemma I have now. Yes, I could get another screen capture program but I would prefer to have encoder back up and running for many reasons. Without being stubborn, I have a numerous encoder files I need to process into wmv format through this program otherwise they are useless and I need to get the screen capture working for work matters as well. I hope that someone can assist me to finding out what is preventing it from starting up and running and get this program going without the need to use another program, why it wont just install and work from there (or does but wont work).