PC keeps freezing and making a weird noise every 30 minutes

My PC will freeze for 5 seconds or so around every 30 minutes. When the freeze happens, a weird gear-like noise comes from the actual PC. It almost sounds like a part is restarting, my speculation is one of the fans. I've had this issue in the past and i fixed it somehow but i cant remember what I do or if I actually fixed or it fixed its self. All I know is this issue stopped for a long time but came back recently after I factory reset the PC.

Does anyone else have this issue or know of a possible fix? Could it just be as easy as cleaning the PC?

I doubt a fan problem can cause the freezes, but the gfx card might be getting some periodic extra work that involves accelerating the fan. It could involve the PSU fan too. I've understood that the freezes are temporary and last seconds, like if Windows or some app needs time for something, but this alone wouldn't imply any noise.

I have floppy and optical drives that do noises, normal ones. The floppy drive sometimes does as if it were accessing a floppy that normally isn't inserted. I don't have a catalog of things that produce this, but it's frequently related to data or drives search. Probably optical drives never do noises not associated to an intended use of them, except at boot up.

Storage could well cause the freezes, but SSDs are 100% silent under any circumstance afaik, and with HDDs I have zero experience about weird noises. But if you have HDD(s) I suggest going to Control Panel -> Power options -> Change advanced power settings and check the items under "Hard Disk". I only have one, "Turn off hard disk after" -> Setting (minutes) and a box with a number. "0" here means that the hard disk never turns off, many say this is the best setting. Do you have "30" here?

I've completed the my computer specs profile section. In terms of checking event viewer, this is the only event i've seen happen at this same time:

Special privileges assigned to new logon.

Subject:
Security ID: SYSTEM
Account Name: SYSTEM
Account Domain: NT AUTHORITY
Logon ID: 0x3E7

Privileges: SeAssignPrimaryTokenPrivilege
SeTcbPrivilege
SeSecurityPrivilege
SeTakeOwnershipPrivilege
SeLoadDriverPrivilege
SeBackupPrivilege
SeRestorePrivilege
SeDebugPrivilege
SeAuditPrivilege
SeSystemEnvironmentPrivilege
SeImpersonatePrivilege
SeDelegateSessionUserImpersonatePrivilege

I'm not sure if this has anything to do with the freezing and noise.

I also checked power settings and I have "turn off hard disk after" set to 20 minutes. The only reason i thought of the fan is because its a grinding noise that my fans usually make when i power on the PC while they start spinning.