diff --git a/04-Create-Windows-virtual-machines.md b/04-Create-Windows-virtual-machines.md
index 5b02948..4e77caf 100644
--- a/04-Create-Windows-virtual-machines.md
+++ b/04-Create-Windows-virtual-machines.md
@@ -41,4 +41,24 @@ secureboot="off"
 
 -   `guest_os="windows"` instructs `quickemu` to optimise for Windows.
 -   `fixed_iso=` specifies the ISO image that provides VirtIO drivers.
--   `tpm="on"` instructs `quickemu` to create a software emulated TPM device using `swtpm`.
\ No newline at end of file
+-   `tpm="on"` instructs `quickemu` to create a software emulated TPM device using `swtpm`.
+
+# Known Issues
+
+## SPICE display causes freezes
+
+Windows 10 and Windows 11 guests may freeze approximately 20 seconds after boot when using `--display spice`. The freeze typically occurs when interacting with the VM, such as opening files or a web browser.
+
+**Workaround**: Use the default SDL display instead of SPICE:
+
+```shell
+# Instead of this (causes freezes):
+quickemu --vm windows-11.conf --display spice
+
+# Use this:
+quickemu --vm windows-11.conf
+```
+
+**Trade-off**: Window resizing and SPICE-specific features (clipboard sharing, USB redirection via SPICE) will not be available with SDL display.
+
+This appears to be an upstream SPICE/QEMU limitation rather than a quickemu bug. See [issue #1670](https://github.com/quickemu-project/quickemu/issues/1670) for details.
\ No newline at end of file