Hi Steve,
I can imagine the inconvenience you have experienced.
I would ask you to check if the issue persists in clean boot mode. Clean boot helps to check if any third party program is causing the issue. To configure your computer to clean boot refer the following link:
How to perform a clean boot to troubleshoot a problem in Windows Vista, Windows 7, or Windows 8
http://support.microsoft.com/kb/929135
Note: Refer "How to reset the computer to start as usual after troubleshooting with clean boot" under more information to reset the computer to start as normal after troubleshooting.
Hope this helps. If you have any further queries/issues related to Windows, write to us and we will be glad to assist you further.
Hi Mahesh,
Thanks a lot for your help.
I performed a clean boot according to the steps and the video - but the computer just started as normal, and I was unable to work out how to proceed with troubleshooting which third party program is causing the issue.
Could you possibly advise me how to proceed?
Best regards,
Steve