# Library is empty **URL:** https://community.mp3tag.de/t/library-is-empty/41015 **Category:** Support **Created:** [March 10, 2018, 4:55pm UTC](https://community.mp3tag.de/t/library-is-empty/41015 "2018-03-10T16:55:23Z") **Posts on this page:** 1 **Showing post:** 13
### Author: ![poster](https://community.mp3tag.de/user_avatar/community.mp3tag.de/poster/32/4881_2.png) [@poster](https://community.mp3tag.de/u/poster) #### Post date: [May 25, 2020, 12:49pm UTC](https://community.mp3tag.de/t/library-is-empty/41015/13 "2020-05-25T12:49:11Z")
> [@Moonray](#): > > No big file in C:\Program Files (x86)\Mp3tag or subdirs. The help says "metadata is first read from the files and then stored in a database that resides in Mp3tag's configuration folder" Yes. And the configuration folder is not `C:\Program Files (x86)\Mp3tag` but in a standard windows-installation `%appdata%\Mp3Tag` and you find the library in the subfolder `\data\library`. > [@Moonray](#): > > I just want MP3tag to cache metadata in a database so the loading time is better. As Ohrenkino already wrote it is not a good idea to use a NAS if you want to speed up the loading. Anyway there is another possible limiting factor if you use the antivirus-software from Microsoft (Defender) as I wrote here: > [@Windows Defender - Speed of loading files in MP3Tag](https://community.mp3tag.de/t/windows-defender-speed-of-loading-files-in-mp3tag/47784): > > In the past I already noticed that the antivirus-software of windows-defender slows down the loading speed of files in MP3Tag dramatically: At this time my third-party antivirus-software (Avast) had been gotten accidently deactivated and windows-defender activated. This time I wanted to give windows-defender a second chance, deinstalled Avast and activated the defender. The same happened as before: Mp3Tag became very slow in loading files in spite of the activated library-function. I tes… You have to define an exception for mp3tag.exe in the antivirus-settings of windows. --- _[View the full topic](https://community.mp3tag.de/t/library-is-empty/41015)._