All the DATA folders in my mobile phone C drive have disappeared?

c: \ system \ apps \ applnst \ appinst.ini This file is used to record the information of installing software, which increases with the increase of software installation.

c: \ system \ apps \ photo album \ photo album.ini Initialization file of photo browser

c: \ system \ apps \ profile app \ dbprofile.db The database file of mobile phone is used to record the information of installing software, which increases with the increase of software installation.

c: \ system \ apps \ system explorer this folder is the installation folder of SeleQ software

C:\system\bootdata\ mobile phone import data folder. The five files in the folder, CommonData.D, FirstBoot.dat, HALData.dat, LocaleData.D1 and SIMLanguage.dat, have fixed sizes, namely 17b, b, 16b, 7b and 4b respectively. Among them, SIMLanguage.dat records the language types of SIM cards.

C:\system\Data This folder records the data when the program is initialized or running.

C:\System\Date\AHLE Internet

C:\system\Data\cbs There are two dat files in this folder, in which the size of cbs.dat remains unchanged, which is 71b

C:\System\Date\midp2, and the Jamlom increases every time it is turned on. If you delete it, the folder

C:\system\Data\saveddecks will be automatically generated when you turn it on. By default, the folder is empty, and its function is related to the network of the mobile phone service provider.

C:\system\Data\wapstore this folder is mainly used to store some settings and web cache when surfing the Internet with WAP.

c: \ system \ data \ applications.dat program data record

c: \ system \ data \ backgroundimage.mbm The wallpaper image file

C:\system\Data\Bookmarks.db saved in the system is used to record WAP addresses.

C:\system\Data\CACerts.dat certificate file for installing various softwares

C:\system\Data\Calcsoft's own calculator

C:\system\Data\Calendar

C:\system\Data\ CLOCKAPP.dat clock setting archive file

C:\system\Data\CntModel.ini phone book initialization file

C:\system\Data\Contacts.cdb phone book data file, with the increase of phone book records.

C:\system\Data\Logdbu.dat communication data file of mobile phone, including incoming call, outgoing call, call time, GPRS traffic and so on.

c: \ system \ data \ medialplayer.dat multimedia player RealOne player.

C:\system\ data \ MMS _ setting.dat MMS settings

C:\System\Date\music.db music player

C:\system\Data\NITZ.dat default size is 1b

c: \ system \ data \ notepad. Data\Pinboard shortcut

C:\system\Data\SavedDecks.db storage module

C:\system\Data\ smsreast.dat SMS settings archive file of mobile phone

C: \ system \ data \ Template.n1 SMS template file of mobile phone

c: \ system \ data \ unitconverter.int Initialization file of unit converter that comes with mobile phone

c: \ system \ data \ vocosmodedata.db Data file related to media sound

c: \ system \ data \ WAP rest. Datwap setting archive file.

c: \ system \ favorites, initialized to null.

the location and name of the file added by the shortcut key c: \ system \ favorites \ xx.lnk

the folder c: \ system \ install \ will also contain the sis record file of the software you installed

C:\system\install\ install.log the log file of the software installed in the mobile phone.

C:\System\libs software connection file and library file, DLL file Nokia

C:\system\Mail short message storage folder.

C:\System\MIDIets JAVA program file

C:\system\Mtm\ information setting directory

C:\System\recogs storage directory for association mode files

c: \ system \ schedules \ schedules.dat to-do data file.

C:\system\Shareddata mobile phone function setting file, including mobile phone device settings, call settings, connection settings, time settings, network settings, etc. After changing the settings in Tools-Settings, the files in this folder will change.

C:\System\Temp\ folder for storing temporary files, initialized to be empty.

C:\System\System.ini system initialization configuration file.

C:\Sytstem\Backup.xml backup data.