Using an activator prevents you from receiving certain security patches and makes your system ineligible for official Microsoft support.
using suspicious activators contain malicious code. Re-Loader v2.6 specifically has been flagged by advanced sandboxes as having a 100/100 threat score, often labeled as a Administrative Privilege Exploitation:
: Using unauthorized activation tools violates Microsoft's Terms of Service and Software License Terms. Genuine licenses should be purchased through the Microsoft Store or authorized retailers.