Solved Do I really need java?


rfhar

rfhar

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I have had Java on my computer for years but do not know why. With the latest update it will not; first it was error 1602 and now it is “Can not determine a valid Java home”. I do not game nor know any other reason for Java. As such if there is no reason for me to have it, I will be happy to rid of Java.



What say?
 

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The short, unhelpful, answer is that you only need it if you have an application that requires it. You can uninstall it, and if you run across an application that needs it, it will let you know. Then you can re-install it.
 

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JAVA can be uninstalled but a program that needs it may not work, should get a message to that effect and if the program is needed would have to reinstall.
 

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A quick and dirty check in Powershell
Powershell: 
Get-ChildItem -Path C:\ -Recursive -Include *.jar -ErrorAction SilentlyContinue

Although this isn't going to cover Java apps with exe wrappers and also some Java apps will have their own copy of the java compiler pre-packaged
 

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neemobeer said:
A quick and dirty check in Powershell
Powershell: 
Get-ChildItem -Path C:\ -Recursive -Include *.jar -ErrorAction SilentlyContinue

Although this isn't going to cover Java apps with exe wrappers and also some Java apps will have their own copy of the java compiler pre-packaged
Click to expand...
this is what I get as an answer:
PS C:\Users\Ronz> Get-ChildItem -Path C:\ -Recursive -Include *.jar -ErrorAction SilentlyContinue
Get-ChildItem : A parameter cannot be found that matches parameter name 'Recursive'.
At line:1 char:25
+ Get-ChildItem -Path C:\ -Recursive -Include *.jar -ErrorAction Silent ...
+ ~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (:) [Get-ChildItem], ParameterBindingException
+ FullyQualifiedErrorId : NamedParameterNotFound,Microsoft.PowerShell.Commands.GetChildItemCommand
What did I do wrong?
 

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@rfhar It should be Recurse, not Recursive.
 

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Delete it!!!

I've not installed Java for years, and none of my programs seem to require it.

TM :cool:
 
pseymour said:
The short, unhelpful, answer is that you only need it if you have an application that requires it. You can uninstall it, and if you run across an application that needs it, it will let you know. Then you can re-install it.
Click to expand...
This.

Also its a huge security risk, so if a program does need it, try to find a more modern alternative.

Edit: I am talking about the java program itself, not the ones baked into other software.
 
Last edited:

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I don't have it installed (not for years) but it's everywhere, scripts, plugins and even an .exe in 3D Mark. :sneaky:

2024-09-20_14h19_43.png

2024-09-20_14h21_19.png
 

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    ASUS Vivobook
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    Windows 11AMD Ryzen 7 5800H / 3.2 GHz32 GB DDR4 SDRAM 3200 MHzNVIDIA GeForce RTX 3060 6 GB GDDR6 SDRAM
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Fabler2 said:
I don't have it installed (not for years) but it's everywhere, scripts, plugins and even an .exe in 3D Mark. :sneaky:
Click to expand...
Right, apps like 3D Mark come bundled with their own JRE, which is nice. Remove the app, remove the JRE. No more guessing whether some random installation of Java is needed.
 

My Computer My Computer

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Windows 11 Enterprise 25H2
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Windows 11 Enterprise 25H2
Thanks Guys No more Java problem.....
 

My Computer My Computer

At a glance

Win 11 home 23H23.6 Mhz Intel Core i7 Core i7-9700KGSKILL Ripjaws 16GB DDR4 MemoryGigabyte GeForce GTX 1050i Graphics
OS
Win 11 home 23H2
Computer type
PC/Desktop
Manufacturer/Model
Custom
CPU
3.6 Mhz Intel Core i7 Core i7-9700K
Motherboard
Asus Prime Z390-A Motherboard
Memory
GSKILL Ripjaws 16GB DDR4 Memory
Graphics Card(s)
Gigabyte GeForce GTX 1050i Graphics
Sound Card
MoBo
Monitor(s) Displays
HP M22fFHD monitor
Screen Resolution
1920 x 1080
Hard Drives
SHGP-31-1000GM SSD
SAMSUNG 850 PRO 2.5" 256GB SSD
1 Tetra Seagate ST1000DX001-1NS162
Exterior Gotega CD/DVD
PSU
600 Watt power supply
Case
Fractal Design Meshify C case
Cooling
Cooler Master 120mm CPU Cooler
Keyboard
Iogi K540
Mouse
Logi 310Edge
Internet Speed
7GB Down - - -IGB Up
Browser
Brave mostly lately
Antivirus
Windows
Other Info
Win11 ver 23H2 (OS Build 22361.3085
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