Error: Java Virtual Machine Launcher

Question

I have this error one day after i start my laptop this error pops up,

Java Virtual Machine Launcher

Error: Unable to access jarfile

C:\Users\ASUS\AppData\Local\Packages\Microsoft Windows.Client.We

bExperience_dw6n1h3txyewz\SystemAppData\Helium\6d61696e2d32

2e352e32.dat

I have look into the directory but the folder "Microsoft Windows.Client.WebExperience_dw6n1h3txyewz" is not there.
I have updated my java and system.

I want to upload the screenshot but the file keeps failing to upload.

Please help me.

Answer 1

Hi, This is Ramesh.

You may upload the screenshot to imgur.com and post the link here.

Please run the Farbar Scanner and share your logs so we can inspect the startup items, services, and scheduled tasks and check for malware.

1. Download Farbar Recovery Scan Tool 64-bit (FRST64.exe)

https://www.bleepingcomputer.com/download/farba...

(or)

https://downloads.malwarebytes.com/file/mbst-fr...

Note: If Microsoft Edge or Chrome mislabels the Farbar Scanner executable as PUA/malware, choose to keep it by tapping … in the bottom bar, choosing Keep, and then choosing Keep anyway in the dialog that appears.

See this screenshot: https://learn.microsoft.com/en-us/deployedge/me.... It's a safe tool used in most antimalware forums.

2. If the OS language is not English, rename FRST64.exe to FRST64English.exe.
3. Run the program. Don't check or uncheck any options. Click "Scan".
4. Add the two logs, FRST.txt and Addition.txt, to a Zip archive, upload them to your OneDrive and share the link here.

---

How-To: Share OneDrive files and folders - Microsoft Support

https://support.microsoft.com/en-us/office/shar...

OneDrive sharing options - screenshot

https://imgur.com/a/vZyxpY9

Standard Disclaimer: There is a link to a non-Microsoft website. The page appears to provide accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as PUPs (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.

Answer 2

I have done all that you ask, here you go:

Screenshot of the error:

https://imgur.com/a/lnpck9J

The scan result FRST.txt and Addition.txt in google drive https://drive.google.com/drive/folders/1uDT_Nn2V97YYhUTA-ELU_jHohnDFqmns?usp=sharing

Answer 3

Hi,

There are no rogue scheduled tasks, but a suspicious batch file runs at startup.

Please run this fixlist.

Download fixlist.txt - https://www.winhelponline.com/fixlist/JunoKA/fi...

Save Fixlist.txt to the folder where FRST64English.exe is located.

Close all programs.

Launch the Farbar Scanner tool and click "Fix".

Restart Windows when prompted.

Upload the output log file (FixLog.txt) to your OneDrive.

NOTE: Don't run the same fixlist.txt more than once. Also, the fixlist.txt script was written specifically for this user and for use on that particular machine. It is not recommended to run it on another machine.

Standard Disclaimer: There is a link to a non-Microsoft website. The page appears to provide accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as PUPs (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.

Answer 4

Hi Ramesh,

Please find the log in the link below.
https://drive.google.com/drive/folders/1uDT_Nn2V97YYhUTA-ELU_jHohnDFqmns?usp=sharing

The error is no more after the update.

Thank you

Answer 5

Hi,

The batch file was the culprit. It was trying to load a .dat file using JRE.

Rename FRST64.exe to Uninstall.exe and run it. This removes all files/folders created by FRST and the tool itself. A reboot is required.

Let me know if you have any questions.