No one can really help you with this at the moment.
The error R6025 is one of those general errors, created by Microsoft to give you a clue,
but confuse you about possible solutions.
Its to general to know where to start.
This error can point to:
Bill Gates having a bad hair day.
Hard ware problems.
(you video card could be to old to work at least nice with direct X 9)
Bad programming in Construct.
So it dont get along with every possible hardware/ possible windows combination found on the whole world. (in my eyes this is impossible anyway, so scrap the 'bad')
3th party software sitting between the calls the program is making and the Hardware/Windows executing them. The bad actors in this are usually 3th party codecs.
Spyware often can cause problems like this. Also viruses. They often redirect calls made to the system and hardware, to do there nasty thing, based on normal actions done by the user.
It can be caused by security software being over active, killing processes and library's needed to run Construct properly.
It can be caused by library's not been registered and not loading correctly.
It can be caused by so many things, there is no point to start.
Do i want construct to work with every video card, old or new, ever build ?
God no, thats so impossible.
Do i want construct to work with any Windows set up ever done on any computer ?
Oh god no, thats so impossible.
Sorry in advance for being hard and cruel ?
If you think your system is clean and working well. U can try to bring up a cmd window.
And execute the follow.
Will it work ? i dont know. You shall see.
What videocard do you have anyway ? What windows to you run ?