If you are having trouble finding the software, there are many legitimate alternative open-source tools for memory management, such as RAMMap or Microsoft Process Explorer .
Because version 2.4.3 is an older release of the software, looking for a valid serial number online is a mathematical dead end. License keys are tied to specific user databases, and public serial numbers found on aggregate sites are almost universally blacklisted by the software developer or outright fake. The Hidden Dangers of "Serial Number" and "Crack" Websites Cleanmem Mini Monitor 2.4.3 Serial Number
These alternatives may offer similar functionality without the need for a serial number. If you are having trouble finding the software,