diff --git a/doc/chm/VeraCrypt User Guide.chm b/doc/chm/VeraCrypt User Guide.chm
index 9615fadf..daf3ee5b 100644
Binary files a/doc/chm/VeraCrypt User Guide.chm and b/doc/chm/VeraCrypt User Guide.chm differ
diff --git a/doc/html/Incompatibilities.html b/doc/html/Incompatibilities.html
index 84610d9e..e3226b88 100644
--- a/doc/html/Incompatibilities.html
+++ b/doc/html/Incompatibilities.html
@@ -34,8 +34,8 @@
Incompatibilities
-
-Activation of Adobe Photoshop® and Other Products Using FLEXnet Publisher® / SafeCast
+
+Activation of Adobe Photoshop® and Other Products Using FLEXnet Publisher® / SafeCast
Note: The issue described below does
not affect you if you use a non-cascade encryption algorithm (i.e., AES, Serpent, or Twofish).* The issue also does
@@ -62,7 +62,12 @@ Possible permanent solution: decrypt the system partition/drive, and then re-encrypt it using a non-cascade encryption algorithm (i.e., AES, Serpent, or Twofish).*
Please note that this not a bug in VeraCrypt (the issue is caused by inappropriate design of the third-party activation software).
-
+
Outpost Firewall 9.1
+
+if Outpost Firewall 9.1 is installed with Proactive Protection enabled, the machine freezes completely for 5-10 seconds during the volume mount/dismount operation. This is caused by a conflict between Outpost System Guard option that protects "Active Desktop" objects and VeraCrypt waiting dialog displayed during mount/dismount operations.
+
+A workaround that fixes this issue is to disable VeraCrypt waiting dialog in the Preferences: use menu "Settings -> Preferences" and check the option "Don't show wait message dialog when performing operations".
+
* The reason is that the VeraCrypt Boot Loader is smaller than the one used for cascades of ciphers and, therefore, there is enough space in the first drive track for a backup of the VeraCrypt
Boot Loader. Hence, whenever the VeraCrypt Boot Loader is damaged, its backup copy is run automatically instead.
diff --git a/doc/html/Issues and Limitations.html b/doc/html/Issues and Limitations.html
index a7be3f60..ac9e8e95 100644
--- a/doc/html/Issues and Limitations.html
+++ b/doc/html/Issues and Limitations.html
@@ -44,7 +44,12 @@
Known Issues
Also, there are other entries whose name start with "#{" and "\??\Volume{": double click on each one of them and remove the ones whose data value contains the name "VeraCrypt" and "TrueCrypt".
-
+
+
On some Windows machines, VeraCrypt may hang intermittently when mounting or dismounting a volume. Similar hanging may affect other running applications during veraCrypt mounting or dismounting operations.
+This issue is caused by a conflict between VeraCrypt waiting dialog displayed during mount/dismount operations and other software installed on the machine (e.g. Outpost Firewall Pro).
+In such situations, the issue can be solved by disabling VeraCrypt waiting dialog in the Preferences: use menu "Settings -> Preferences" and check the option "Don't show wait message dialog when performing operations".
+
+
Limitations
- [Note: This limitation does not apply to users of Windows Vista and later versions of Windows.] On Windows XP/2003, VeraCrypt does not support encrypting an entire system drive that contains extended (logical) partitions. You can encrypt an entire