Hi Calli W. :welcome:
Experts say you must not disable UAC and you should use a windows standard user profile instead of an administrator user profile.
If you will use your computer to connect to the internet, and if you will install programs from dubious and unsafe sources, you should not disable it and you should also set it to its maximum level.
Provided you are using also (in an efficient way) a good antivirus and a good firewall.
On the contrary, If you will not use your computer to connect to the internet (I'm not sure if this thing is nowadays possible anymore: internet could be risky but it's also very useful), and if you will install programs only from legitimate and safe sources, you can disable it without any fears.
Hope this helps.