Celeb Glow
updates | March 04, 2026

Is it safe to delete Java folders from C:\Users\(Username)\AppData\LocalLow\Sun\Java

I am using a Windows 7 64-bit PC. I have many folders in C:\Users\(Username)\AppData\LocalLow\Sun\Java with names of older Java versions like:

  • jdk1.7.0_21_x64
  • jre1.7.0_45
  • jre1.7.0_25

These folders contain .msi and .cab files. I have uninstalled all older versions of Java but these folders are still in that location.

Do I need those? Or is it safe to delete?

1

3 Answers

Yes, if you've already uninstalled them, this is safe to do.

Also, you may find Oracle's Java Uninstall Tool helpful.

Based on the this bug report, I removed the files in C:\Users\(Username)\AppData\LocalLow\Sun\Java after installation. Java continued to work as it should. It became impossible to remove, using Add/Remove Programs, any version whose files I had deleted.

It seems that these files are only kept around for uninstallation. Java Uninstall Tool mentioned in Jason's answer probably alleviates the need to keep those files around.

Recommend to nuke the folder C:\Users\username\AppData\LocalLow\Sun\Java

There were 12 different versions of java in mine, from 1.6.26 to 1.8.31.

All these java versions are obsolete and past end-of-life. They have extremely serious unpatched security vulnerabilities. Better nuke them to orbit.

They were most likely installed by some software that tried to embed or auto-install java half-assedly. They will never get upgraded.

The java uninstallation tool suggested in the top answer is long dead . It's a java applet, browsers have been totally blocking java for years due to recurring security issues. You can try opening in Internet Explorer but it should be broken.

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