Pls help to relock Bootloader & restore Stock ROM 2.33.652.2 on 816 A5_CHL

I was on Stock ROM 2.33.652.2.I have unlocked bootloader & install TWRP 3.0.0.0.
Then I flashed MM 6.0.1 ROM 13.0-20160216-UNOFFICIAL-a5chl.
Now I want to relock bootloader , & restore stock ROM 2.33.652.2. for warranty .I have downloaded HTC Stock recovery image File & have TWRP back up of Stock ROM.
My Device status:

Software status:Modified
***Unlocked***
A5_CHL PVT SHIP S-ON
HBOOT-3.19.0.0000
Radio-1.47.40.0224
OpenDSP-v27.2.200546.0311
OS-
eMMC-boot 1536 MB

Are the steps given are correct to re lock Bootloader & restore Stock ROM?

1) Booting in TWRP recovery mode then restore back up of Stock ROM.
2) Then connecting the phone to PC & flashing stock recovery image file or using TWRP to flash stock recovery image..
3) After that relocking the bootloader by typing command "fastboot oem lock".

I have read in forum that after relocking bootloader,we have to flash stock RUU file .
I have downloaded the file but its in .exe format

http://ift.tt/21BTdvn

Can your please tell me the procedure to re lock Boot loader & restore Stock ROM.
Also the firmware I have downloaded is the correct STOCk ROM file ? if I run this using windows will I able to install stock ROM 2.33.652.2 on my mobile?or this will brick my mobile?

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