Memory leak error often caused by Antivirus or malware scan application which try to hook spesifics memory.
Or UFI.exe is corrupted because of False disinfection by antivirus.
UFI.exe build 429 should have this hash value:
SHA1: B2E994F713BE8B5AA399EB56BF45E398D32A2981
SHA256: 3162BA0759385C73A14D814C9C53991BE3069F893B26BD69EA60F814B308C3FC
other than that, exe is corrupted.
If you're using Antivirus, you have to add exclusions to UFI.exe or even better to the root path of UFI directory.
Avoid to use any "cracked" software because some cracked software sometimes come with plus, and this is dangerous to your system.