Thanks Mr. Arnold
Your feedback kept me trying things to fix problem.
Eventually fixed it, fingers crossed
- open internet explorer symbol bottom L.H.S of screen
- type in computer then windows to access system32 where indwvm.dll
is located
- right click highlighted indwvm.dll to get toolbar
- click properties at bottom

noticed indwvm.dll was named indwvm.dll."wyo" or similar ending (can't
remember)
- renamed it indwvm.dll &
- ticked box to make read-only &
- open with notepad
Don't know which one fixed it but suspect name change. Thanks again.

Similar APPCRASH with faulty .dll problems may work with similar approach