Vacuum and wipe the subfloor clean.
Sand any areas that are not completely flush.
Optional: Paint old grout lines or fill them in with thinset mortar.
Optional: Clean concrete floors with acetone (optional).
Unpack the tiles and let them adjust to room temperature and humidity before installation.
Set aside any tiles with blemishes or patterns you don't like.
Dry fit your tiles and decide on your flooring pattern and dry lay the tiles on your clean floor.
Check that you have enough tiles to cover the entire floor.
Ensure that the layout of the tiles looks even and balanced.
Cut the tiles. Measure carefully and use a speed square and utility knife to score the back of the tiles. Use high-quality scissors in some areas to trim excess or make hard cuts.
Begin installation by starting at a straight edge of the room or in the center. For larger rooms it is recommended to start in the middle.
Remove the paper backing and lay down the tile.
Line up the plank and make sure you are happy with the placement before pushing down.
Use a roller to help even push the adhesive into the concrete.
Repeat the above steps until the whole floor is covered.
Reinstall baseboards or shoe molding.
Miter shoe molding after painting it white to match baseboards.
Install a transition strip if needed.