diff --git a/unotools/source/config/bootstrap.cxx b/unotools/source/config/bootstrap.cxx
index 51d3625e4af0..09c52157024b 100644
--- a/unotools/source/config/bootstrap.cxx
+++ b/unotools/source/config/bootstrap.cxx
@@ -32,7 +32,6 @@
 #include <osl/diagnose.h>
 
 #include <rtl/bootstrap.hxx>
-#include <rtl/instance.hxx>
 #include <osl/process.h>
 
 // #define this to true, if remembering defaults is not supported properly
@@ -112,12 +111,16 @@ private: // implementation
 
 namespace
 {
-    class theImpl : public rtl::Static<Bootstrap::Impl, theImpl> {};
+    Bootstrap::Impl& theImpl()
+    {
+        static Bootstrap::Impl SINGLETON;
+        return SINGLETON;
+    }
 }
 
 const Bootstrap::Impl& Bootstrap::data()
 {
-    return theImpl::get();
+    return theImpl();
 }
 
 bool Bootstrap::getProcessWorkingDir(OUString &rUrl)
@@ -146,7 +149,7 @@ bool Bootstrap::getProcessWorkingDir(OUString &rUrl)
 
 void Bootstrap::reloadData()
 {
-    theImpl::get().initialize();
+    theImpl().initialize();
 }
 
 // helper
diff --git a/unotools/source/config/cmdoptions.cxx b/unotools/source/config/cmdoptions.cxx
index b61e49840390..d9e061224a4a 100644
--- a/unotools/source/config/cmdoptions.cxx
+++ b/unotools/source/config/cmdoptions.cxx
@@ -27,7 +27,6 @@
 #include <com/sun/star/uno/Sequence.hxx>
 #include <com/sun/star/frame/XFrame.hpp>
 #include <cppuhelper/weakref.hxx>
-#include <rtl/instance.hxx>
 
 #include "itemholder1.hxx"
 
@@ -340,16 +339,12 @@ void SvtCommandOptions::EstablishFrameCallback(const css::uno::Reference< css::f
     m_pImpl->EstablishFrameCallback(xFrame);
 }
 
-namespace
-{
-    class theCommandOptionsMutex : public rtl::Static<osl::Mutex, theCommandOptionsMutex>{};
-}
-
 //  private method
 
 Mutex& SvtCommandOptions::GetOwnStaticMutex()
 {
-    return theCommandOptionsMutex::get();
+    static osl::Mutex theCommandOptionsMutex;
+    return theCommandOptionsMutex;
 }
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/unotools/source/config/configmgr.cxx b/unotools/source/config/configmgr.cxx
index 84ab42cc795d..5b109788d2cd 100644
--- a/unotools/source/config/configmgr.cxx
+++ b/unotools/source/config/configmgr.cxx
@@ -28,7 +28,6 @@
 #include <com/sun/star/uno/Sequence.hxx>
 #include <i18nlangtag/languagetag.hxx>
 #include <officecfg/Setup.hxx>
-#include <rtl/instance.hxx>
 #include <rtl/ustring.hxx>
 #include <sal/log.hxx>
 #include <unotools/configitem.hxx>
@@ -67,10 +66,6 @@ getConfigurationProvider() {
     return css::configuration::theDefaultProvider::get( comphelper::getProcessComponentContext() );
 }
 
-struct theConfigManager:
-    public rtl::Static< utl::ConfigManager, theConfigManager >
-{};
-
 }
 
 OUString utl::ConfigManager::getAboutBoxProductVersion() {
@@ -114,7 +109,8 @@ void utl::ConfigManager::storeConfigItems() {
 }
 
 utl::ConfigManager & utl::ConfigManager::getConfigManager() {
-    return theConfigManager::get();
+    static utl::ConfigManager theConfigManager;
+    return theConfigManager;
 }
 
 css::uno::Reference< css::container::XHierarchicalNameAccess >
diff --git a/unotools/source/config/fontcfg.cxx b/unotools/source/config/fontcfg.cxx
index cfa6705a41c6..ef94981d7746 100644
--- a/unotools/source/config/fontcfg.cxx
+++ b/unotools/source/config/fontcfg.cxx
@@ -31,7 +31,6 @@
 #include <comphelper/propertysequence.hxx>
 #include <unotools/syslocale.hxx>
 #include <rtl/ustrbuf.hxx>
-#include <rtl/instance.hxx>
 #include <osl/diagnose.h>
 #include <sal/macros.h>
 #include <sal/log.hxx>
@@ -83,18 +82,10 @@ static const char* getKeyType( DefaultFontType nKeyType )
     }
 }
 
-namespace
-{
-    class theDefaultFontConfiguration
-        : public rtl::Static<DefaultFontConfiguration,
-            theDefaultFontConfiguration>
-    {
-    };
-}
-
 DefaultFontConfiguration& DefaultFontConfiguration::get()
 {
-    return theDefaultFontConfiguration::get();
+    static DefaultFontConfiguration theDefaultFontConfiguration;
+    return theDefaultFontConfiguration;
 }
 
 DefaultFontConfiguration::DefaultFontConfiguration()
@@ -297,17 +288,10 @@ OUString DefaultFontConfiguration::getUserInterfaceFont( const LanguageTag& rLan
  *  FontSubstConfigItem::get
  */
 
-namespace
-{
-    class theFontSubstConfiguration
-        : public rtl::Static<FontSubstConfiguration, theFontSubstConfiguration>
-    {
-    };
-}
-
 FontSubstConfiguration& FontSubstConfiguration::get()
 {
-    return theFontSubstConfiguration::get();
+    static FontSubstConfiguration theFontSubstConfiguration;
+    return theFontSubstConfiguration;
 }
 
 /*
diff --git a/unotools/source/config/lingucfg.cxx b/unotools/source/config/lingucfg.cxx
index eaf4310ca314..f37fffb5734a 100644
--- a/unotools/source/config/lingucfg.cxx
+++ b/unotools/source/config/lingucfg.cxx
@@ -25,7 +25,6 @@
 #include <com/sun/star/configuration/theDefaultProvider.hpp>
 #include <com/sun/star/container/XNameAccess.hpp>
 #include <com/sun/star/util/XChangesBatch.hpp>
-#include <rtl/instance.hxx>
 #include <sal/log.hxx>
 #include <osl/mutex.hxx>
 #include <tools/diagnose_ex.h>
@@ -47,8 +46,11 @@ constexpr OUStringLiteral FILE_PROTOCOL = u"file:///";
 
 namespace
 {
-    class theSvtLinguConfigItemMutex :
-        public rtl::Static< osl::Mutex, theSvtLinguConfigItemMutex > {};
+    osl::Mutex& theSvtLinguConfigItemMutex()
+    {
+        static osl::Mutex SINGLETON;
+        return SINGLETON;
+    }
 }
 
 static bool lcl_SetLocale( LanguageType &rLanguage, const uno::Any &rVal )
@@ -319,7 +321,7 @@ bool SvtLinguConfigItem::GetHdlByName(
 
 uno::Any SvtLinguConfigItem::GetProperty( const OUString &rPropertyName ) const
 {
-    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex::get());
+    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex());
 
     sal_Int32 nHdl;
     return GetHdlByName( nHdl, rPropertyName ) ? GetProperty( nHdl ) : uno::Any();
@@ -327,7 +329,7 @@ uno::Any SvtLinguConfigItem::GetProperty( const OUString &rPropertyName ) const
 
 uno::Any SvtLinguConfigItem::GetProperty( sal_Int32 nPropertyHandle ) const
 {
-    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex::get());
+    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex());
 
     uno::Any aRes;
 
@@ -409,7 +411,7 @@ uno::Any SvtLinguConfigItem::GetProperty( sal_Int32 nPropertyHandle ) const
 
 bool SvtLinguConfigItem::SetProperty( const OUString &rPropertyName, const uno::Any &rValue )
 {
-    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex::get());
+    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex());
 
     bool bSucc = false;
     sal_Int32 nHdl;
@@ -420,7 +422,7 @@ bool SvtLinguConfigItem::SetProperty( const OUString &rPropertyName, const uno::
 
 bool SvtLinguConfigItem::SetProperty( sal_Int32 nPropertyHandle, const uno::Any &rValue )
 {
-    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex::get());
+    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex());
 
     bool bSucc = false;
     if (!rValue.hasValue())
@@ -559,13 +561,13 @@ bool SvtLinguConfigItem::SetProperty( sal_Int32 nPropertyHandle, const uno::Any
 
 const SvtLinguOptions& SvtLinguConfigItem::GetOptions() const
 {
-    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex::get());
+    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex());
     return aOpt;
 }
 
 void SvtLinguConfigItem::LoadOptions( const uno::Sequence< OUString > &rProperyNames )
 {
-    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex::get());
+    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex());
 
     bool bRes = false;
 
@@ -684,7 +686,7 @@ bool SvtLinguConfigItem::SaveOptions( const uno::Sequence< OUString > &rProperyN
     if (!IsModified())
         return true;
 
-    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex::get());
+    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex());
 
     bool bRet = false;
 
@@ -746,7 +748,7 @@ bool SvtLinguConfigItem::SaveOptions( const uno::Sequence< OUString > &rProperyN
 
 bool SvtLinguConfigItem::IsReadOnly( const OUString &rPropertyName ) const
 {
-    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex::get());
+    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex());
 
     bool bReadOnly = false;
     sal_Int32 nHdl;
@@ -757,7 +759,7 @@ bool SvtLinguConfigItem::IsReadOnly( const OUString &rPropertyName ) const
 
 bool SvtLinguConfigItem::IsReadOnly( sal_Int32 nPropertyHandle ) const
 {
-    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex::get());
+    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex());
 
     bool bReadOnly = false;
 
@@ -808,13 +810,13 @@ constexpr OUStringLiteral aG_Dictionaries = u"Dictionaries";
 SvtLinguConfig::SvtLinguConfig()
 {
     // Global access, must be guarded (multithreading)
-    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex::get());
+    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex());
     ++nCfgItemRefCount;
 }
 
 SvtLinguConfig::~SvtLinguConfig()
 {
-    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex::get());
+    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex());
 
     if (pCfgItem && pCfgItem->IsModified())
         pCfgItem->Commit();
@@ -829,7 +831,7 @@ SvtLinguConfig::~SvtLinguConfig()
 SvtLinguConfigItem & SvtLinguConfig::GetConfigItem()
 {
     // Global access, must be guarded (multithreading)
-    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex::get());
+    osl::MutexGuard aGuard(theSvtLinguConfigItemMutex());
     if (!pCfgItem)
     {
         pCfgItem = new SvtLinguConfigItem;
diff --git a/unotools/source/config/moduleoptions.cxx b/unotools/source/config/moduleoptions.cxx
index 0af82141d30a..324736359b6e 100644
--- a/unotools/source/config/moduleoptions.cxx
+++ b/unotools/source/config/moduleoptions.cxx
@@ -28,7 +28,6 @@
 #include <comphelper/sequence.hxx>
 #include <osl/diagnose.h>
 #include <o3tl/enumarray.hxx>
-#include <rtl/instance.hxx>
 #include <com/sun/star/uno/Any.hxx>
 #include <com/sun/star/uno/Sequence.hxx>
 #include <com/sun/star/beans/PropertyValue.hpp>
diff --git a/unotools/source/config/pathoptions.cxx b/unotools/source/config/pathoptions.cxx
index 59e8a978d0b1..60335e00dfb9 100644
--- a/unotools/source/config/pathoptions.cxx
+++ b/unotools/source/config/pathoptions.cxx
@@ -37,7 +37,6 @@
 #include <com/sun/star/util/PathSubstitution.hpp>
 #include <com/sun/star/util/XStringSubstitution.hpp>
 #include <com/sun/star/util/theMacroExpander.hpp>
-#include <rtl/instance.hxx>
 #include <o3tl/enumarray.hxx>
 
 #include "itemholder1.hxx"
@@ -433,12 +432,19 @@ SvtPathOptions_Impl::SvtPathOptions_Impl()
 
 // class SvtPathOptions --------------------------------------------------
 
-namespace { struct lclMutex : public rtl::Static< ::osl::Mutex, lclMutex > {}; }
+namespace
+{
+    ::osl::Mutex& lclMutex()
+    {
+        static ::osl::Mutex SINGLETON;
+        return SINGLETON;
+    }
+}
 
 SvtPathOptions::SvtPathOptions()
 {
     // Global access, must be guarded (multithreading)
-    ::osl::MutexGuard aGuard( lclMutex::get() );
+    ::osl::MutexGuard aGuard( lclMutex() );
     pImpl = g_pOptions.lock();
     if ( !pImpl )
     {
@@ -451,7 +457,7 @@ SvtPathOptions::SvtPathOptions()
 SvtPathOptions::~SvtPathOptions()
 {
     // Global access, must be guarded (multithreading)
-    ::osl::MutexGuard aGuard( lclMutex::get() );
+    ::osl::MutexGuard aGuard( lclMutex() );
 
     pImpl.reset();
 }
diff --git a/unotools/source/config/syslocaleoptions.cxx b/unotools/source/config/syslocaleoptions.cxx
index 7e38237ec3b2..8f08202a7a23 100644
--- a/unotools/source/config/syslocaleoptions.cxx
+++ b/unotools/source/config/syslocaleoptions.cxx
@@ -18,7 +18,6 @@
  */
 
 #include <com/sun/star/uno/Sequence.hxx>
-#include <rtl/instance.hxx>
 #include <sal/log.hxx>
 #include <i18nlangtag/mslangid.hxx>
 #include <i18nlangtag/languagetag.hxx>
@@ -41,8 +40,7 @@ using namespace com::sun::star::lang;
 namespace
 {
     std::weak_ptr<SvtSysLocaleOptions_Impl> g_pSysLocaleOptions;
-    struct CurrencyChangeLink
-        : public rtl::Static<Link<LinkParamNone*,void>, CurrencyChangeLink> {};
+    Link<LinkParamNone*,void> g_CurrencyChangeLink;
 
 Mutex& GetMutex()
 {
@@ -669,15 +667,15 @@ OUString SvtSysLocaleOptions::CreateCurrencyConfigString(
 void SvtSysLocaleOptions::SetCurrencyChangeLink( const Link<LinkParamNone*,void>& rLink )
 {
     MutexGuard aGuard( GetMutex() );
-    DBG_ASSERT( !CurrencyChangeLink::get().IsSet(), "SvtSysLocaleOptions::SetCurrencyChangeLink: already set" );
-    CurrencyChangeLink::get() = rLink;
+    DBG_ASSERT( !g_CurrencyChangeLink.IsSet(), "SvtSysLocaleOptions::SetCurrencyChangeLink: already set" );
+    g_CurrencyChangeLink = rLink;
 }
 
 // static
 const Link<LinkParamNone*,void>& SvtSysLocaleOptions::GetCurrencyChangeLink()
 {
     MutexGuard aGuard( GetMutex() );
-    return CurrencyChangeLink::get();
+    return g_CurrencyChangeLink;
 }
 
 void SvtSysLocaleOptions::ConfigurationChanged( utl::ConfigurationBroadcaster* p, ConfigurationHints nHint  )
diff --git a/unotools/source/i18n/textsearch.cxx b/unotools/source/i18n/textsearch.cxx
index ba75b0b2319b..0ed0539b0e17 100644
--- a/unotools/source/i18n/textsearch.cxx
+++ b/unotools/source/i18n/textsearch.cxx
@@ -32,7 +32,6 @@
 #include <unotools/charclass.hxx>
 #include <comphelper/processfactory.hxx>
 #include <unotools/textsearch.hxx>
-#include <rtl/instance.hxx>
 #include <rtl/ustrbuf.hxx>
 #include <tools/diagnose_ex.h>
 #include <mutex>
diff --git a/unotools/source/ucbhelper/tempfile.cxx b/unotools/source/ucbhelper/tempfile.cxx
index 22ce434b0e3e..02770fda8744 100644
--- a/unotools/source/ucbhelper/tempfile.cxx
+++ b/unotools/source/ucbhelper/tempfile.cxx
@@ -24,7 +24,7 @@
 
 #include <unotools/tempfile.hxx>
 #include <rtl/ustring.hxx>
-#include <rtl/instance.hxx>
+#include <osl/mutex.hxx>
 #include <osl/detail/file.h>
 #include <osl/file.hxx>
 #include <tools/time.hxx>