1) Downloaded and installed the newest installation package
2) After starting jdownloder 2 beta, build date 24.7. 20:15, updater# 134
it shown 1110 update available.
3) Started updater as administrator (windows 7) which downloads the package and starts update.
4) The update stops every time at a different step with the error message

22:11:46 - Updater started: 24.07.12
22:11:46 - Installation folder: C:\Program Files (x86)\JDownloader 2
22:11:47 - Verwende beta-Edition
22:11:47 - Kontaktiere Updateserver
22:11:47 - Not installed files: 455
22:11:48 - Searchig for updates
22:11:50 - Gefunden: 588 Datei(en) herunterladen, 1043 Datei(en) installieren & 65 alte Datei(en) entfernen.
22:11:52 - Erstelle Updatepaket
22:11:57 - Download
22:11:57 - Nehme Download von 3,92 MB wieder auf
22:12:19 - Entpacke Updatepaket
22:12:21 - Installiere Resourcen
22:12:21 - Installiere Updates
22:12:21 - -> extensions\AntiShutdown.jar
.....................................
22:12:38 - -> jd\plugins\hoster\IFileIt.class
22:12:38 - Update wurde unterbrochen. Änderungen werden rückgängig gemacht.
22:12:51 - Update fehlgeschlagen
22:12:51 - Nicht genug Rechte um nach C:\Program Files (x86)\JDownloader 2\jd\plugins\hoster\IFileIt.class zu schreiben.

[Jiaz]

remove this file C:\Program Files (x86)\JDownloader 2\jd\plugins\hoster\IFileIt.class
and let the update replace/install it again
seems something blocked access to the file
make sure no java processes are running, then start Updater.jar

I try to update because Im having problem with Mediafire.

The updater.jar worked, but only with the file, doesn't work with the program's updater button.

But still failing the Mediafire.com (plugin crash) downloads after the update.

I don't know what to do.

[pspzockerscene]

If you have a problem with mediafire, please open a new thread in the Hoster Plugin Forum!

GreeZ pspzockerscene

[Jiaz]

Nicht genug Rechte um nach C:\Program Files (x86)\
seems you started jd with wrong rights!
this message means: not enough rights to move file

you have rights missmatch!
you have to start jd as same user as you installed it with!
rightclick on the jd folder, properties
security tab, edit
and give every user full control!

about mediafire, please do as pspzocker said