My friend has following problem:
Her cat stepped on the keyboard and the colours got inverted.
Turning on magnifier then pressing CTRL+ALT+I fixes it (because it inverts colours already inverted) but if I close magnifier the colours are negative again.
What combo did the cat use???
Try the solution below and untick the option to invert colors if it's ticked.
How to Invert Colors on Windows 7: 7 Steps (with Pictures)
No, it's not ticked, the colours are already inverted elsewhere. When I tick it ON it inverts it (again) so it looks normal.
IIRC, try "Left Alt+Left Shift+PrtScn" , that's the key combo to turn on/off High Contrast screen.
no, it's not hight contrast
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