I don't understand this statement. The diameter dialog only appears if you shift-click. If it is always appearing, I think you need to turn off 'sticky keys', a feature in Windows that keeps shift pressed after one press so that disabled people can use it.
Sticky keys disabled I do not understand, could be some setting on my laptop But thanks to your observation, I realized it could be something related to the keyboard I discovered that clicking again Shift can disable the dialog box. resolved thank you