Thats the problem with Future or Pledge finishes over acrylics.
Any sort of stripping, Windex or otherwise will damage the acrylic paint.
I did it once, before applying a wash, and learnt the hard way.
When finishing a model, if I want it too look perfectly clean, I Pledge, and it's done.
If applying washes, I will alternate between Pledge and enamel finishes, so no damage is done to underlying paintwork.
Takes some time, but better than respraying mistakes.