3 files changed, 75 insertions, 0 deletions
diff --git a/src/Common/Dlgcode.c b/src/Common/Dlgcode.c
index 0203a931..7a4f473e 100644
--- a/src/Common/Dlgcode.c
+++ b/src/Common/Dlgcode.c
@@ -14896,3 +14896,76 @@ void PasswordEditDropTarget::GotDrop(CLIPFORMAT format)
 	}
 }
 
+
+/*
+ * Query the status of Hibernate and Fast Startup
+ */
+
+typedef BOOLEAN (WINAPI *GetPwrCapabilitiesFn)(
+  PSYSTEM_POWER_CAPABILITIES lpspc
+);
+
+BOOL GetHibernateStatus (BOOL& bHibernateEnabled, BOOL& bHiberbootEnabled)
+{
+	wchar_t szPowrProfPath[MAX_PATH] = {0};
+	HMODULE hPowrProf = NULL;
+	BOOL bResult = FALSE;
+
+	bHibernateEnabled = bHiberbootEnabled = FALSE;
+
+	if (GetSystemDirectory(szPowrProfPath, MAX_PATH))
+		StringCchCatW (szPowrProfPath, MAX_PATH, L"\\PowrProf.dll");
+	else
+		StringCchCopyW (szPowrProfPath, MAX_PATH, L"C:\\Windows\\System32\\PowrProf.dll");
+
+	hPowrProf = LoadLibrary (szPowrProfPath);
+	if (hPowrProf)
+	{
+		GetPwrCapabilitiesFn GetPwrCapabilitiesPtr = (GetPwrCapabilitiesFn) GetProcAddress (hPowrProf, "GetPwrCapabilities");
+		if ( GetPwrCapabilitiesPtr)
+		{
+			SYSTEM_POWER_CAPABILITIES spc;
+			BOOLEAN bRet = GetPwrCapabilitiesPtr (&spc);
+			if (bRet)
+			{
+				DWORD dwHibernateEnabled = 0;
+				DWORD dwHiberbootEnabled = 0;
+
+				if (spc.SystemS4)
+				{
+					dwHibernateEnabled = 1;
+					if(!ReadLocalMachineRegistryDword (L"SYSTEM\\CurrentControlSet\\Control\\Power", L"HibernateEnabled", &dwHibernateEnabled))
+					{
+						// starting from Windows 10 1809 (Build 17763), HibernateEnabledDefault is used when HibernateEnabled is absent
+						if (IsOSVersionAtLeast (WIN_10, 0) && CurrentOSBuildNumber >= 17763)
+							ReadLocalMachineRegistryDword (L"SYSTEM\\CurrentControlSet\\Control\\Power", L"HibernateEnabledDefault", &dwHibernateEnabled);
+					}
+				}
+
+				// check if Fast Startup / Hybrid Boot is enabled
+				if (IsOSVersionAtLeast (WIN_8, 0) && spc.spare2[0])
+				{
+					dwHiberbootEnabled = 1;
+					ReadLocalMachineRegistryDword (L"SYSTEM\\CurrentControlSet\\Control\\Session Manager\\Power", L"HiberbootEnabled", &dwHiberbootEnabled);
+				}
+
+				if (dwHibernateEnabled)
+					bHibernateEnabled = TRUE;
+				else
+					bHibernateEnabled = FALSE;
+
+				if (dwHiberbootEnabled)
+					bHiberbootEnabled = TRUE;
+				else
+					bHiberbootEnabled = FALSE;
+
+				bResult = TRUE;
+			}
+		}
+
+		FreeLibrary (hPowrProf);
+	}
+
+	return bResult;
+}
+
diff --git a/src/Common/Dlgcode.h b/src/Common/Dlgcode.h
index 52d94f10..2378aeb8 100644
--- a/src/Common/Dlgcode.h
+++ b/src/Common/Dlgcode.h
@@ -745,6 +745,7 @@ public:
 	DWORD	GotEnter(void);
 };
 
+BOOL GetHibernateStatus (BOOL& bHibernateEnabled, BOOL& bHiberbootEnabled);
 
 #endif // __cplusplus
 
diff --git a/src/Common/Language.xml b/src/Common/Language.xml
index 0545996c..cc12e8b7 100644
--- a/src/Common/Language.xml
+++ b/src/Common/Language.xml
@@ -1444,6 +1444,7 @@
     <entry lang="en" key="IDC_FORCE_NEXT_BOOT_VERACRYPT">Force machine to boot on VeraCrypt in the next startup</entry>
     <entry lang="en" key="IDC_FORCE_VERACRYPT_BOOT_ENTRY">Force the presence of VeraCrypt entry in the EFI firmware boot menu</entry>
     <entry lang="en" key="IDC_FORCE_VERACRYPT_FIRST_BOOT_ENTRY">Force VeraCrypt entry to be the first in the EFI firmware boot menu</entry>
+    <entry lang="en" key="RAM_ENCRYPTION_DISABLE_HIBERNATE">WARNING: RAM encryption is not compatible with Windows Hibernate and Windows Fast Startup features. VeraCrypt needs to disable them before activating RAM encryption.\n\nContinue?</entry>
   </localization>
   <xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
     <xs:element name="VeraCrypt">