Tomcat JRE UnsatisfiedLinkError

Recently, I sweep some old and unused JRE on my computer. But after that, when I load Tomcat (with eclipse for example), I have this error :

java.lang.UnsatisfiedLinkError: C:\Tomcat7\bin\tcnative-1.dll: Can't load IA **64**-bit .dll on a AMD **64**-bit platform

I have reinstalled JRE 7 or 8 but same result...

Any idea ? Thanks