diff --git a/README.md b/README.md
index 983d8f8..4a40174 100644
--- a/README.md
+++ b/README.md
@@ -140,7 +140,7 @@ umount /mnt
 #### 4.7
 Delete unencrypted LVM-Volume-Group by executing:
 ```bash
-umount /mnt
+vgremove vg0
 ```
 
 #### 4.8
@@ -166,12 +166,6 @@ Mount encrypted :
 mount /dev/vg0/root /mnt
 ```
 
-#### 4.11
-Mount encrypted :
-```bash
-mount /dev/vg0/root /mnt
-```
-
 #### 4.12
 Copy "system":
 ```bash