Update german.nsi

Line 32
Changing "zumindest" to "mindestens".
I even would go further to change the line into "[...] Windows 7 oder höher." ("[...] Windows 7 or higher."), as this seems to make more sense and we wouldn't have the hassle of discussing whether "zumindest" or "mindestens" fits better.

If you insist on a comment:
It is quite a cosmetic change, and a personal opinion as well. Imo "mindestens" fits more to the theme of general use - "zumindest" can be used in special places, as it isn't that common in e.g. regular conversations. What comes to my mind is "Best before", which is "Mindestens haltbar bis". It would be unusual to use "Zumindest haltbar bis". 😄

Finally it is up to you what to change.

CC: @schnurlos

Additionally I fixed line 10, where no need of a double-"mit" was.
Plus line 34, as requested!

dist/windows/installer-translations/german.nsi

@@ -7,7 +7,7 @@ LangString inst_dekstop ${LANG_GERMAN} "Verknüpfung auf dem Desktop erstellen"
 ;LangString inst_startmenu ${LANG_ENGLISH} "Create Start Menu Shortcut"
 LangString inst_startmenu ${LANG_GERMAN} "Eintrag im Startmenü erstellen"
 ;LangString inst_startup ${LANG_ENGLISH} "Start qBittorrent on Windows start up"
-LangString inst_startup ${LANG_GERMAN} "qBittorrent mit Windows mitstarten"
+LangString inst_startup ${LANG_GERMAN} "qBittorrent mit Windows starten"
 ;LangString inst_torrent ${LANG_ENGLISH} "Open .torrent files with qBittorrent"
 LangString inst_torrent ${LANG_GERMAN} "Öffne .torrent-Dateien mit qBittorrent"
 ;LangString inst_magnet ${LANG_ENGLISH} "Open magnet links with qBittorrent"
@@ -29,9 +29,9 @@ LangString launch_qbt ${LANG_GERMAN} "Starte qBittorrent."
 ;LangString inst_requires_64bit ${LANG_ENGLISH} "This installer works only in 64-bit Windows versions."
 LangString inst_requires_64bit ${LANG_GERMAN} "Diese Installation funktioniert nur mit einer 64-bit Version von Windows."
 ;LangString inst_requires_win7 ${LANG_ENGLISH} "This qBittorrent version requires at least Windows 7."
-LangString inst_requires_win7 ${LANG_GERMAN} "Diese Version von qBittorrent erfordert zumindest Windows 7."
+LangString inst_requires_win7 ${LANG_GERMAN} "Diese Version von qBittorrent erfordert mindestens Windows 7."
 ;LangString inst_uninstall_link_description ${LANG_ENGLISH} "Uninstall qBittorrent"
-LangString inst_uninstall_link_description ${LANG_GERMAN} "Uninstall qBittorrent"
+LangString inst_uninstall_link_description ${LANG_GERMAN} "qBittorrent deinstallieren"
 
 ;------------------------------------
 ;Uninstaller strings