Wow, didn't expect this level of response! I'll answer the questions all there
One suggestion I can make, I don't use the same settings in 10 as I do with 7, so try putting your card in YCbCr mode instead of RGB in 10.
I have an nVideo GT420 video card, it's identical hardware to the one in my Win7 machine. I also installed the identical video driver version, and if I look in the advanced settings it seems to be in RGB mode already, with 32 bi color depth.
One thing that seems to slightly help was under the custom resolution settings you could set the polarity to positive or negative for the horizontal and vertical display, setting both to negative seems to have helped a little. Adjusting colors, contrast, brightness, hue, digital vibrancy, and every other setting either made the issue worse or made no difference.
 Maybe try the laptop noted in the other thread, however I understand that trying to convince a corporate IT dept you need a gaming laptop to do your job won't necessarily go down well.
I don't think they would go for that, it is a very locked down corporate environment and even then I have doubts it would do anything. I am nearly 100% sure that the issue is the Windows 10 desktop rendering engine and nothing to do with hardware.
What happens when you cover one eye and look at the screen? Is it the same? You have to look for a while, so you really can tell if it’s different. I have been in a similar situation like you so i know the felling, it sucks big time. Training with one eye covered was the solution for me. If it worked for me, it may work for you.
I haven't tried it can you provide more details?
Could you run Win10 with the generic video driver ie no accelleration?
I have tried no driver, an identical driver to my Win7 machine, and the latest driver. All acted identically in regards to my system
IT is looking into this option for me right now, it may be something to try
I've never tried one I could look into it
Can you offset some of your work onto your windows 7 laptop without them knowing?
Unfortunately security is very tight in my job, and everything is locked down on the machine. You can't connect it to your local network and share files, the USB ports are all disabled, file sharing websites are blocked, so it's not feasible in any way I can see to do my work on Win7 and then push it over to the Win10 machine.
If you do lose your job, have you considered freelancing from your win 7 laptop.
I don't really have any skills worthwhile in the freelancing department
Lastly maybe mowing lawns, ubering, buying a food truck.
I'm to old and broken down to get into physical labor at this point in my life.
Taking out a loan and purchasing an established business with guaranteed income?
I'm looking into it but honestly I don't want to be an entrepreneur and everyone I know who went into business and didn't have a passion for it all went bust.
Is an e-ink display an option?
I could use any monitor I want ,I might see about checking out an e-ink display
Have you tried this regedit to disable DWM?
I have not, I will be firing up my VM right after this post and giving it a try
I can (probably) explain their reasoning to you.
I understand their point of view, I have worked in technology my entire career. I just disagree with it. To me, being more concerned with the suffering of an employee than meeting an IT policy is basic human dignity.
What I'd probably do if i was in your position and with the hardware I have access to, is do some experimentation with lossless capture between a "known good" setup and a "bad" setup while keeping as many variables as the same and comparing differences in the signal between the two.
I've done that with hardware. Both my Win 7 machine have identical monitors, identical video cards, identical drivers, even Identical cables, and they both sit about 3 feet apart from each other in the same room. Win7 = perfect, Win10 = pain. So it has to be an OS level software issue between the two
Back to the matter at hand, I am having success desensitizing myself to migraine triggering devices. Gone from 5seconds of use of a smartphone to 60seconds now with only minor discomfort following.
Can you share your method?
Did you try old versions of W10? Because if you are fine with them you can use the W10 2015 LTSC, W10 2016 LTSC or W10 2018 LTSC. With these versions, you will receive only the security patch and nothing else so you should be fine
I have to use the version work will give me. At home or on any personal device I will never install Windows 10, ever, so it's not a concern there.
I'll check it out
Thanks for all the support everyone, keep the dialogue going!