Are you experiencing a (like no sound or gaming lag)? Which version of Windows are you currently running?
Visit the support page for Dell, HP, Lenovo, or ASUS and enter your serial number.
Search your email (including spam/junk folders) for the original purchase receipt from PC HelpSoft. Log into Your Account: Visit the official PC HelpSoft Website
If you choose to use the software, the only reliable way to get a functional license is through official channels: Is Driver Updater free? - PC HelpSoft