diff --git a/FAQ.md b/FAQ.md
index 6631ccb..9200b92 100644
--- a/FAQ.md
+++ b/FAQ.md
@@ -190,3 +190,9 @@ A: See [CompileError](CompileError).
 **<a name="Q27_ipv6">Q27:</a> Is IPv6 supported?**
 
 A: Not yet, see ticket #867.
+
+**<a name="Q28_delete_files">Q28:</a> How to delete files/folder from Tahoe-LAFS grid?**
+
+A: Tahoe-LAFS is designed to allow multiple users to access the same files. You wouldn't like it if one day a file of yours had been deleted by somebody else, right? Therefore, we have to solve The Garbage Collection Problem. The current solution is: do lease-renewal every month or so, and delete any files that nobody has lease-renewed in more than a month or so.
+
+For more details read [Garbage Collection in Tahoe](https://tahoe-lafs.org/trac/tahoe-lafs/browser/trunk/docs/garbage-collection.rst).