So i deleted my Java folders and files somehow manually. idk how :// So i when i try to download Java it downloads but doesnt open so I cant play Runescape. Anyone know how to restore deleted files? I already tried " system restore" and going back a few days.. it told me "Cannot be restored " or something like that. When i try to delete it from " Add or Remove Programs" it starts to delete it and says "Processing, wait please".... and then a window pops up and says " Fatal Error during installation"

Help please!!! Thank you very much! 

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either copy the dir structure from another machine with that version or go into the registry and manually remove the old keys so you can install a newer version.

Answered 11/05/2012 by: SMal.tmcc
Red Belt

  • you can also try
    http://support.microsoft.com/mats/program_install_and_uninstall
  • what?
  • since this was a 3rd party program system restore is useless, only a backup or system image would help.
    If you do not know how you did it, you could have moved the folder by doing a drag-n-drop on the folder. Search for the java folder on the drive or even check your trash to see if it is in there.
    If not I suggest you go to the link above and follow it's directions and run that, then try to reinstall java.
  • tried it, and still didnt work , shows the same thing " Fatal error during installation"
  • I am assuming windows 7, try deleting all files in your profile under appdata\local\temp and appdata\locallow\sun\java. some of the file in temp may be locked just skip those
  • also you can try
    http://majorgeeks.com/JavaRA_d5982.html
  • ok I managed to delete Java 7 Update 9 from " Add or remove programs" but when I try to download it again. it says i already have it installed :/
  • try going to
    http://java.com/en/download/manual.jsp
    and download the offline version and install that one
  • if you are comfortable editing your registry. go into the reg editor and search for "Java 7 Update 9", you will find keys under HKLM\SOFTWARE\classes\installer\products\AHexKeyset\ where that is the "product name", delete the entire keyset
    and under HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\AHexKeyset\ displayname, delete this keyset.
  • I have done that, and i downloaded the offline version and it says: " Another version of this product if already installed. Installation process cannot continue. To configure or remove the existing version of this product, use Add/Remove programs on the Control Panel" and when I open the control panel/Add/remove programs Java 7 Update 9 isnt there anymore :/
  • look in your registry under HkeyLocalMachine\software\microsoft\windows\currentversion\uninstall for any other keysets with java mentioned in it and delete them also, see picture I attached as a new answer, On my machine I would delete all for of the keysets I marked then try reinstalling.
  • if that fails this uninstaller is recommended for stubborn uninstalls/installs
    http://www.revouninstaller.com/ try the 30day trial
  • I have used Revo alraedy, and now Java isnt on my computer, but when i try to download it, it thinks its already installed.
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Answered 11/09/2012 by: SMal.tmcc
Red Belt

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