help I have 64-bit java installed but the launcher says I only have 32-bit

[Tyler13700]

As the title says, I have 64-bit java installed, and it won't let me allocate over 1GB of ram, saying I need to install 64-bit java to have more ram. (I have 8GB of ram)

[StandOffGaming]

I am having the same issue. I have never had 32-bit Java in my life and when I look up what Java version, it still says I have 64-bit, but Technic launcher says I only have 32-bit therefore I only get 1 Gb of ram. Please help!

[JaariAtmc]

3 hours ago, StandOffGaming said:

I am having the same issue. I have never had 32-bit Java in my life and when I look up what Java version, it still says I have 64-bit, but Technic launcher says I only have 32-bit therefore I only get 1 Gb of ram. Please help!

Like, go and actually download and install java 64-bit, considering it downloads 32-bit by default? https://java.com/en/download/windows_offline.jsp

[SunWuCheng]

I tried the above solution, I've checked the command prompt to see if I have any additional instances of Java installed, I've manually scoured through my files to make sure... I definitely only have 64-bit Java installed and yet Technic refuses to recognize it. Any helpful hints would be greatly appreciated.

[DarkAssassinLink]

On 5/13/2021 at 11:30 PM, SunWuCheng said:

I tried the above solution, I've checked the command prompt to see if I have any additional instances of Java installed, I've manually scoured through my files to make sure... I definitely only have 64-bit Java installed and yet Technic refuses to recognize it. Any helpful hints would be greatly appreciated.

Be sure you have Java 8 64bit. It does make a difference. Regular Java does not work in the same way as Java 8. 
Link can be found here: https://www.java.com/en/download/manual.jsp

It MUST be the one on the bottom of the windows selection. IF you are unable to. It IS however possible your PC has only 2GB of ram. Type "About your PC" in the search bar of Windows to check this

[sputnikfive]

for anyone coming to all these years-old threads looking to fix this problem, what helped me is updating whatever version of java i'm using WITHOUT uninstalling the previous version that technic was recognizing, opening the technic launcher, navigating to launcher options and changing which version of java to use. from here i was able to change my ram from 1gb to 4gb perfectly fine.

i have never had java 32bit installed. for whatever reason the technic launcher ran just fine with my 8.231 version of java 64bit, but upgrading to 8.381 made it unable to run. many people in other threads here and on reddit said to uninstall the previous version and keep the latest version, but the only thing that worked for me was having both versions and just switching which version to use within the technic launcher.

 

this thread may also be of some help for people experiencing similar problems if you're willing to do registry editing.

 

https://forums.technicpack.net/topic/328467-techniclauncherexe-not-recognizing-java/