Help me please my pc got bugged soo hard.

So,i was playing fifa then i got bored so i closed the game . Then i went on chrome to search for something and when i write a word then i press "space" it doesn't work and it takes the command like it was the right click of the mouse .There are so much things that happend,for example when i press left click on a search bar it writtes me automatically something like "</3B><>> ".I have a razer deathadder chroma ,Razer Kraken 7.1and a razer blackwidow ultimate 2016. After hours of being mad ,i reinstalled the windows but same problem, after that i unistalled the razer synapse 2 and to find out that this was the main problem. Now what should i do ? I can't use my razer synapse 2 and without it my headphones hear like are some $5 headphones.