diff --git a/application/basilisk/installer/windows/nsis/installer.nsi b/application/basilisk/installer/windows/nsis/installer.nsi
index 6b68b4e2d3..6ff93993b9 100644
--- a/application/basilisk/installer/windows/nsis/installer.nsi
+++ b/application/basilisk/installer/windows/nsis/installer.nsi
@@ -1056,11 +1056,6 @@ Function .onInit
   StrCpy $LANGUAGE 0
   ${SetBrandNameVars} "$EXEDIR\core\distribution\setup.ini"
 
-  ; Don't install on systems that don't support SSE2. The parameter value of
-  ; 10 is for PF_XMMI64_INSTRUCTIONS_AVAILABLE which will check whether the
-  ; SSE2 instruction set is available.
-  System::Call "kernel32::IsProcessorFeaturePresent(i 10)i .R7"
-
   ; Windows NT 5.0 and lower are not supported on any architecture.
   ${Unless} ${AtLeastWinXP}
     ${If} "$R7" == "0"
@@ -1073,13 +1068,6 @@ Function .onInit
     Quit
   ${EndUnless}
 
-  ; SSE2 support
-  ${If} "$R7" == "0"
-    MessageBox MB_OKCANCEL|MB_ICONSTOP "$(WARN_MIN_SUPPORTED_CPU_MSG)" IDCANCEL +2
-    ExecShell "open" "${URLSystemRequirements}"
-    Quit
-  ${EndIf}
-
 !ifdef HAVE_64BIT_BUILD
   ${Unless} ${RunningX64}
     MessageBox MB_OKCANCEL|MB_ICONSTOP "$(WARN_MIN_SUPPORTED_OSVER_MSG)" IDCANCEL +2
diff --git a/application/palemoon/installer/windows/nsis/installer.nsi b/application/palemoon/installer/windows/nsis/installer.nsi
index 88310f4c7a..896a3d761c 100644
--- a/application/palemoon/installer/windows/nsis/installer.nsi
+++ b/application/palemoon/installer/windows/nsis/installer.nsi
@@ -1056,11 +1056,6 @@ Function .onInit
   StrCpy $LANGUAGE 0
   ${SetBrandNameVars} "$EXEDIR\core\distribution\setup.ini"
 
-  ; Don't install on systems that don't support SSE2. The parameter value of
-  ; 10 is for PF_XMMI64_INSTRUCTIONS_AVAILABLE which will check whether the
-  ; SSE2 instruction set is available. Result returned in $R7.
-  System::Call "kernel32::IsProcessorFeaturePresent(i 10)i .R7"
-
   ; Windows NT 5.0 and lower are not supported on any architecture.
   ${Unless} ${AtLeastWinXP}
     ${If} "$R7" == "0"
@@ -1073,13 +1068,6 @@ Function .onInit
     Quit
   ${EndUnless}
 
-  ; SSE2 support
-  ${If} "$R7" == "0"
-    MessageBox MB_OKCANCEL|MB_ICONSTOP "$(WARN_MIN_SUPPORTED_CPU_MSG)" IDCANCEL +2
-    ExecShell "open" "${URLSystemRequirements}"
-    Quit
-  ${EndIf}
-
 !ifdef HAVE_64BIT_BUILD
   ${Unless} ${RunningX64}
     MessageBox MB_OKCANCEL|MB_ICONSTOP "$(WARN_MIN_SUPPORTED_OSVER_MSG)" IDCANCEL +2