- Use igtask.exe ultilities (can find it in startup folder of ImageGlass)
igtasks.exe regassociations "*.bmp;*.cur;*.cut;*.dib;*.emf;*.exif;*.gif;*.ico;*.jfif;*.jpe;*.jpeg;*.jpg;*.pbm;*.pcx;*.pgm;*.png;*.ppm;*.psb;*.svg;*.tif;*.tiff;*.webp;*.wmf;*.wpg;*.xbm;*.xpm;*.exr;*.hdr;*.psd;*.tga;"
- Or run Registry script, can find it here: https://github.com/d2phap/ImageGlass/issues/129