To overthehill thanks for your prompt reply
Yes I tried your suggestion (the bmp file assc. was there)(no It didn't fix it)among several other suggestions I found on various other sites eg. delete registry key for mspaint ,make sure file associations are correct etc I did a complete scan with microsft security essentials no virus or malware was found I did a complete defrag I freed up disk space I have 48% free space.Image files open with other graphics programs I have installed when I right click and select "open with"and yes I know I can use other programs for graphics but I really love the quick and easy paint and I use it quite frequently so I would like to find a solution to this.Thks