Thank you all for your advice and assistance.
Yesterday Audacity finally worked - and today it is still working.
Thor 21344
"He was able to recover all my files and most of my programmes"
I regret if my information was confusing. When the computer enginner replaced my C Drive with a brand new one he was able to recover all my files and nearly all of the programs installed on the old C Drive which were in C/Program Files.
I have had no trouble at all with any programs until I installed Audacity 2.0, which is the only program that has not worked.
Koz
As a fairly newcomer to computers and without formal training when upgrading from Vista to Windows 7, I followed the instructions on the installation disc.(I was installing Windows 7 Home Premium, not the Professional version which would have meant a clean instal).
I had no difficulty in the conversion and everything has worked fine until Audacity 2.0.
Thank you for your information about Microsoft's on-line virus protection which I did not know existed. I downloaded the program and ran a full system scan.
This ran from late morning until well into the afternoon. No malicious files were found.
Solanus
Your information about Avast was very useful. I did a full system scan which took ages. Fortunately no malicious files were found.
Gale Andrews
Thank you for your perserverance. I did use the Dell Service Tag when trying to identify a driver for the sound, and like you came up with just the Creative Sound Blaster which I'm sure was not on my system . I was reluctent to download it as I have now upgraded from Vista to 7.
Befor resorting to System Restore I followed your instructions by disconnecting form the internet and exiting Avast. I then did a computer restart, restored Avast and re-connected to the internet.
I then clicked on Audacity symbol on the Desk Top and AUDACITY OPENED!!!
I could hardly believe it, so I closed Audacity and re-opened it again, and again, and again. Each time it worked.
Today I tried again (I could hardly believe the solution was so simple) and it is still working.
So no need to reinstal Windows 7.
I will certainly be making a back-up. I use Genie Timeline and a seperate 2GB drive for back-ups.
I am extremely grateful for all your assistance.
I knew nothing about computers until six years ago. I am now aged 75. After buying a digital camera wanted to improve the pictures. I used to print them at first, but that proved very expensive so I learned how to burn them to a DVD. I then wanted to produce slide shows with tranitions, captions and music. Hence Audacity.
Next I wanted all my friends to be able to view the shows, so I learned how to build a web site (
http://www.brianthomaswilson.me.uk).
Once again thank you all.
Brian Wilson.