I did the clean boot, but nothing happened. Thing is, this system lag happens randomly. It can go a whole day with nothing happening and the next day it can lag every hour for 5 minutes each. It did not lag while clean booting, but the lag only happens when trying to start new processes. I cannot reproduce the lag either.
As for the time, I have a very special thing, in which my country's government sets the summer-winter time per year, which is not constant. Syncronizing to any other server that is not the official one will mess up the time. Setting Windows time and sync changed it to a time that is not correct, so I always have to set it manually.
As for the commands, I ran them anyways.
The first one said that Windows Time Service has not started. The second said Error: Denied Access 0x80070005 (I ran it with admin). The rest ran correctly and ended up with a wrong local time because Windows servers have the wrong time for where I live.