For 32bit Operating System

"C:/Program Files/SumatraPDF/SumatraPDF.exe" -forward-search "?c:am.tex" @ -inverse-search '"C:/Program Files/TeXstudio/texstudio.exe" "%%f" -line %%l' "?am.pdf"

For 64bit Operating System (if 64bit SumatraPDF is installed)

"C:/Program Files/SumatraPDF/SumatraPDF.exe" -forward-search "?c:am.tex" @ -inverse-search '"C:/Program Files/TeXstudio/texstudio.exe" "%%f" -line %%l' "?am.pdf"

For 64bit Operating System (if 32bit SumatraPDF is installed)

"C:/Program Files/SumatraPDF (x86)/SumatraPDF.exe" -forward-search "?c:am.tex" @ -inverse-search '"C:/Program Files (x86)/TeXstudio/texstudio.exe" "%%f" -line %%l' "?am.pdf"