Hello,
I downloaded SQL Developer 21.4.3 with JRE not included(sqldeveloper-21.4.3.063.0100-no-jre,
MD5: b344a7010e1ca76b6fe20696ebbb1b43
SHA1: 7dec3e55f0eeb8b7e4af5b24cb96f36ee05144e0)
as I already have JDK and JRE installed in my system when I run below command in my cmd
C:\Users\abc>java -version
java version "1.8.0_331"
Java(TM) SE Runtime Environment (build 1.8.0_331-b09)
Java HotSpot(TM) Client VM (build 25.331-b09, mixed mode, sharing).
So after I extracted the folder of sqldeveloper I run sqldeveloper.exe and it asked me for my jdk path and I confirmed OK then it did not open the sqldeveloper. I checked product.conf and it has set the path SetJavaHome C:\Program Files (x86)\Java\jdk1.8.0_331 which is correct path. I also tried running it with administrator permissions and it did not open sqldeveloper