Ever since I downloaded QGIS 2.2 I can't get the georeferencer plugin to open. I've removed all older versions of QGIS & reinstalled & have just installed 2.8.6 but am still having the same problem. I select Raster -> Georeferencer-> Georeferencer but no window opens. Has anyone else had this problem & is there a solution for it?
I just had this issue with 3.4 Madeira. So I installed version 3.6 Noosa and found the same issue. I work with dual monitors a lot and after a long time trying to figure out how work with the regedit.exe (never figured it out) I decided to check display settings. I moved the monitors such that it went from Mon 1, Mon 2 to Mon 2, Mon 1 and got the georeferencer window back. Hope this may help others who are less computer literate like myself.
A colleague was having this same issue on his Win 7 laptop with v. 2.14. Turns out the window was being placed off screen.
We solved using the Windows & arrow keys to move the window; i.e. keep pressing: Win+← until it appears.