Non-Accessible Recovery Mode on Mac I have a MacBook Pro (late 2011) and I'd like to install Windows 10 on it.

The best way to do it, is to use Boot Camp Assistant but not on my MacBook because it's not supported.

In order to change my MBR from Hybrid into Protective to be able to install Windows, I have to "disable csrutil" which is just available through recovery mode.

So here's the problem:
I can't access my Recovery mode.
I spent 5 hours waiting but it didn't come up 

What should I do to access Recovery Mode easily?
Actually, I do not believe you need to enter what you refer to as Recovery Mode. If you the format either the 2nd, 3rd or 4th partition as MS-DOS(FAT), the partition method should change to hybrid.

You probably will not be able to install Windows 10 using a EFI boot method. You should use the legacy BIOS boot method. This means you want to use a hybrid partitioning scheme.

You should be able to download the "Boot Camp Support Software" (BCSS) using the Boot Camp Assistant. Although, for some Macs this download is the same as for a Windows 7 installation.

When running the Windows installer, you will need to reformat the MS-DOS(FAT) volume as NTFS.