When my house was built 10 years ago, there apparently was no primer put on the bare drywall before it was painted. I found this out when I had to repair a wall and the paint literally peeled off in sections. I peeled off the paint on this one wall,

All of my windows do not have trim around them and I have faux wooden blinds in all of them. Would it be best to paint the inside of the window seals white, or should I paint it the color of the room? My reasoning for painting it white is

Buying a new home and the colors are just blah. It has white siding with Black shutters and a black door. Any suggestions to help bring it to life and out of the plantation era?

After I remove wallpaper can I use a paint with built in primmer and not prime the walls?