Download ZLIB for Windows from Sourceforge and install it on your Windows machine. Works with x86/x64
Currently, the ZLIB installer from Sourceforge (above) installs in C:/Program Files (x86)/GnuWin32.
Run cmake-gui to open the cmake gui and choose your source and build directories.
Check Abvanced and ckeck if ZLIB_LIBRARY or ZLIB_INCLUDE_DIR have entries in the left column.
If the entry is not a directory, replace whatever is in the right hand column with the directory you found in step 2 and append /bin to the end of the ZLIB_LIBRARY and append /include to the ZLIB_INCLJDE_DIR directory.
It should look something like this.
Hope this helps!
thank you