Lightroom and Photoshop are color managed - which means that they use the monitor profile to display images correctly.
Most other applications (like the Windows 10 Photos app) are not color managed, and will not display images correctly.
So Lightroom is right, and the others are wrong.
The solution is to view the exported images in color managed managed applications only.
The Windows Photo viewer (not Photos) is color managed, as well as the free Irfanview viewer. (you need to enable color management under Settings) You can also use Adobe Bridge.
As for your screenshot, the only difference I can see is that there is more shadow detail in Lightroom.
It is not the program that i view it in , when i connected a laptop to my monitor , i used exactly the same programs as on my desktop .
I tried to view it in adobe bridge and other color managed programs but the problem remains .
There seems to be a small difference in yellow saturation, but the main difference is again in the shadows.
It's hard to evaluate, because you are displaying the image at different magnifications in Photoshop and Bridge.
A difference between a color managed and non-color managed application is to be expected, but when two color managed applications (Photoshop and Bridge) don't display identically, there is something wrong with the monitor profile. (defective, corrupted, or incompatible)
You also seem to be on Windows 10, which is known to install low quality monitor profiles when doing updates.
I suggest that you calibrate all your monitors with a hardware calibrator, which will create new, accurate profiles.
If you connect your monitors to different computers, you have to calibrate each computer/monitor combination individually.
If you don't have a calibrator, you can try setting the monitor to profile to sRGB (Adobe RGB if you have a wide gamut monitor).
This will probably not be entirely accurate, but should make Bridge and Photoshop display identically.
Go to Control Panel > Color management.
Add the sRGB profile, and set it as Default.
Make sure that Use my settings for this device is checked.
You may have a LR incompatible monitor system profile installed. Please follow the below instructions to assign the sRGB profile as a test.
Sorry, it looks like we both posted at 5:30 PM.
No problem. It's 11.30 pm over here, and I'm off to bed in a while.
So problem is solved now , it was a bad monitor driver that windows installed .
Thanks for your support