diff --git a/aqt/installer.py b/aqt/installer.py
index 17d51bb..9beddca 100644
--- a/aqt/installer.py
+++ b/aqt/installer.py
@@ -850,14 +850,19 @@ def run_installer(archives: List[QtPackage], base_dir: str, sevenzip: Optional[s
         raise CliKeyboardInterrupt("Installer halted by keyboard interrupt.") from e
     except MemoryError as e:
         close_worker_pool_on_exception(e)
+        alt_extractor_msg = (
+            "Please try using the '--external' flag to specify an alternate 7z extraction tool "
+            "(see https://aqtinstall.readthedocs.io/en/latest/cli.html#cmdoption-list-tool-external)"
+        )
         if Settings.concurrency > 1:
             docs_url = "https://aqtinstall.readthedocs.io/en/stable/configuration.html#configuration"
             raise OutOfMemory(
                 "Out of memory when downloading and extracting archives in parallel.",
-                suggested_action=[f"Please reduce your 'concurrency' setting (see {docs_url})"],
+                suggested_action=[f"Please reduce your 'concurrency' setting (see {docs_url})", alt_extractor_msg],
             ) from e
         raise OutOfMemory(
-            "Out of memory when downloading and extracting archives.", suggested_action=["Please free up more memory."]
+            "Out of memory when downloading and extracting archives.",
+            suggested_action=["Please free up more memory.", alt_extractor_msg],
         )
     except Exception as e:
         close_worker_pool_on_exception(e)
diff --git a/tests/test_install.py b/tests/test_install.py
index 2a0b7bb..0fbe6c1 100644
--- a/tests/test_install.py
+++ b/tests/test_install.py
@@ -614,7 +614,9 @@ def test_install_nonexistent_archives(monkeypatch, capsys, cmd, xml_file: Option
             "Out of memory when downloading and extracting archives in parallel.\n"
             "==============================Suggested follow-up:==============================\n"
             "* Please reduce your 'concurrency' setting (see "
-            "https://aqtinstall.readthedocs.io/en/stable/configuration.html#configuration)",
+            "https://aqtinstall.readthedocs.io/en/stable/configuration.html#configuration)\n"
+            "* Please try using the '--external' flag to specify an alternate 7z extraction tool "
+            "(see https://aqtinstall.readthedocs.io/en/latest/cli.html#cmdoption-list-tool-external)",
             1,
         ),
         (
@@ -623,7 +625,9 @@ def test_install_nonexistent_archives(monkeypatch, capsys, cmd, xml_file: Option
             "Caught MemoryError, terminating installer workers\n"
             "Out of memory when downloading and extracting archives.\n"
             "==============================Suggested follow-up:==============================\n"
-            "* Please free up more memory.",
+            "* Please free up more memory.\n"
+            "* Please try using the '--external' flag to specify an alternate 7z extraction tool "
+            "(see https://aqtinstall.readthedocs.io/en/latest/cli.html#cmdoption-list-tool-external)",
             1,
         ),
     ),