DWORD (32-bit) value or QWORD (64-bit) value when adjusting TDR?

As suggested by Adobe I am adjusting my TDR so that it prevents unnecessary crashes.

However, the step-by-step guide orients users to add DWORD (32bit) Value key if the TdrDdiDelay value does not exist. Here's a print of the guide.

My issue is that my system is 64-bit (I have already checked), so am I supposed to create a QWORD (64bit) Value instaed? I usually would do this last option in a heartbeat but I'm being extremely cautious because I'm afraid of compromising the whole operating system.

My system type:

Adobe's caution sign:

Could someone please help me? I'm rather desperate, I just want to finish my school projects. o_o;