Problem: I had a huge TIF image file and was not able to overwrite or rename or delete it.

Solution: Open the command line as an administrator, stop Windows explorer, delete the file from the command line (for more details, see below).

I ran into an interesting problem today. I was playing around editing photo in GIMP with my new graphic tablet. Once I was satisfied with the result, I exported the image into TIF file. GIMP managed to exported the file but it was a 1.8GB file!

I was surprised with the file size so I checked why is the file so large. Then, I realized that I forgot to uncheck the "Save layers" option.