diff --git a/Utilities/geometry.h b/Utilities/geometry.h
index b90286c54c..faace6c77e 100644
--- a/Utilities/geometry.h
+++ b/Utilities/geometry.h
@@ -777,9 +777,9 @@ struct color4_base
 	};
 
 	constexpr color4_base()
-		: x{}
-		, y{}
-		, z{}
+		: x{ T{0} }
+		, y{ T{0} }
+		, z{ T{0} }
 		, w{ T(1) }
 	{
 	}
diff --git a/rpcs3/Emu/Cell/Modules/cellCamera.cpp b/rpcs3/Emu/Cell/Modules/cellCamera.cpp
index 7ecad36c3e..708f88753c 100644
--- a/rpcs3/Emu/Cell/Modules/cellCamera.cpp
+++ b/rpcs3/Emu/Cell/Modules/cellCamera.cpp
@@ -1372,7 +1372,7 @@ error_code cellCameraReadEx(s32 dev_num, vm::ptr<CellCameraReadEx> read)
 				return CELL_CAMERA_ERROR_DEVICE_NOT_FOUND;
 			}
 
-			g_camera.bytes_read = bytes_read;
+			g_camera.bytes_read = ::narrow<u32>(bytes_read);
 
 			cellCamera.trace("cellCameraRead: frame_number=%d, width=%d, height=%d. bytes_read=%d (passed to game: frame=%d, bytesread=%d)",
 				frame_number, width, height, bytes_read, read ? read->frame.get() : 0, read ? read->bytesread.get() : 0);
@@ -1385,7 +1385,7 @@ error_code cellCameraReadEx(s32 dev_num, vm::ptr<CellCameraReadEx> read)
 
 	if (has_new_frame)
 	{
-		g_camera.frame_timestamp = (get_guest_system_time() - g_camera.start_timestamp);
+		g_camera.frame_timestamp = ::narrow<u32>(get_guest_system_time() - g_camera.start_timestamp);
 	}
 
 	if (read) // NULL returns CELL_OK
diff --git a/rpcs3/Emu/Cell/Modules/cellHttpUtil.cpp b/rpcs3/Emu/Cell/Modules/cellHttpUtil.cpp
index 4308a08bcc..b3a521867f 100644
--- a/rpcs3/Emu/Cell/Modules/cellHttpUtil.cpp
+++ b/rpcs3/Emu/Cell/Modules/cellHttpUtil.cpp
@@ -248,7 +248,7 @@ error_code cellHttpUtilBuildRequestLine(vm::cptr<CellHttpRequestLine> req, vm::p
 
 	if (required)
 	{
-		*required = result.size();
+		*required = ::narrow<u32>(result.size());
 	}
 
 	return CELL_OK;
@@ -277,7 +277,7 @@ error_code cellHttpUtilBuildHeader(vm::cptr<CellHttpHeader> header, vm::ptr<char
 
 	if (required)
 	{
-		*required = result.size();
+		*required = ::narrow<u32>(result.size());
 	}
 
 	return CELL_OK;
@@ -336,7 +336,7 @@ error_code cellHttpUtilBuildUri(vm::cptr<CellHttpUri> uri, vm::ptr<char> buf, u3
 		fmt::append(result, "%s", uri->path);
 	}
 
-	const u32 size_needed = result.size() + 1; // Including '\0'
+	const u32 size_needed = ::narrow<u32>(result.size() + 1); // Including '\0'
 
 	if (buf)
 	{
diff --git a/rpcs3/Emu/Cell/Modules/cellRtc.cpp b/rpcs3/Emu/Cell/Modules/cellRtc.cpp
index 614a20f355..a686f549ca 100644
--- a/rpcs3/Emu/Cell/Modules/cellRtc.cpp
+++ b/rpcs3/Emu/Cell/Modules/cellRtc.cpp
@@ -846,7 +846,7 @@ error_code cellRtcSetTick(vm::ptr<CellRtcDateTime> pTime, vm::cptr<CellRtcTick>
 	pTime->second      = seconds;
 	pTime->minute      = minutes;
 	pTime->hour        = hours;
-	pTime->day         = days_tmp + 1;
+	pTime->day         = ::narrow<u16>(days_tmp + 1);
 	pTime->month       = months;
 	pTime->year        = years;
 
@@ -1006,10 +1006,10 @@ error_code cellRtcTickAddMonths(vm::ptr<CellRtcTick> pTick0, vm::cptr<CellRtcTic
 	// Not pretty, but works
 
 	s64 total_months     = (date_time->year * 12ULL) + date_time->month + iAdd + -1;
-	s32 total_months_s32 = total_months;
+	s32 total_months_s32 = ::narrow<s32>(total_months);
 	u32 unk_1            = total_months_s32 >> 0x1f;
 	u64 unk_2            = ((total_months_s32 / 6 + unk_1) >> 1) - unk_1;
-	u32 unk_3            = unk_2;
+	u32 unk_3            = ::narrow<u32>(unk_2);
 	unk_1                = unk_3 & 0xffff;
 	u64 unk_4            = (total_months - ((u64{unk_3} << 4) - (unk_3 << 2))) + 1;
 	if (((unk_2 & 0xffff) == 0) || ((unk_3 = unk_4 & 0xffff, (unk_4 & 0xffff) == 0 || (0xc < unk_3))))
@@ -1036,8 +1036,8 @@ error_code cellRtcTickAddMonths(vm::ptr<CellRtcTick> pTick0, vm::cptr<CellRtcTic
 		date_time->day = month_days;
 	}
 
-	date_time->month = unk_4;
-	date_time->year  = unk_2;
+	date_time->month = ::narrow<u16>(unk_4);
+	date_time->year  = ::narrow<u16>(unk_2);
 	cellRtcGetTick(date_time, pTick0);
 
 	return CELL_OK;
@@ -1086,7 +1086,7 @@ error_code cellRtcTickAddYears(vm::ptr<CellRtcTick> pTick0, vm::cptr<CellRtcTick
 		date_time->day = month_days;
 	}
 
-	date_time->year = total_years;
+	date_time->year = ::narrow<u16>(total_years);
 	cellRtcGetTick(date_time, pTick0);
 
 	return CELL_OK;
diff --git a/rpcs3/Emu/Cell/SPUThread.cpp b/rpcs3/Emu/Cell/SPUThread.cpp
index 5fc5f349f3..82dd8cb4d1 100644
--- a/rpcs3/Emu/Cell/SPUThread.cpp
+++ b/rpcs3/Emu/Cell/SPUThread.cpp
@@ -3953,7 +3953,7 @@ bool spu_thread::process_mfc_cmd()
 							if (getllar_busy_waiting_switch == umax)
 							{
 								// Evalute its value (shift-right to ensure its randomness with different CPUs)
-								getllar_busy_waiting_switch = ((perf0.get() >> 8) % 100 < g_cfg.core.spu_getllar_busy_waiting_percentage);
+								getllar_busy_waiting_switch = ((perf0.get() >> 8) % 100 < g_cfg.core.spu_getllar_busy_waiting_percentage) ? 1 : 0;
 							}
 
 							return !!getllar_busy_waiting_switch || getllar_spin_count < 3;
@@ -3971,7 +3971,7 @@ bool spu_thread::process_mfc_cmd()
 							last_getllar_id = mfc_cmd_id;
 							last_gtsc = perf0.get();
 
-							if (getllar_busy_waiting_switch == true)
+							if (getllar_busy_waiting_switch == 1)
 							{
 								busy_wait(300);
 							}
@@ -4535,7 +4535,7 @@ u32 spu_thread::get_ch_count(u32 ch)
 	case SPU_RdSigNotify1:    return ch_snr1.get_count();
 	case SPU_RdSigNotify2:    return ch_snr2.get_count();
 	case MFC_RdAtomicStat:    return ch_atomic_stat.get_count();
-	case SPU_RdEventStat:     return get_events().count;
+	case SPU_RdEventStat:     return static_cast<u32>(get_events().count);
 	case MFC_Cmd:             return 16 - mfc_size;
 
 	// Channels with a constant count of 1:
diff --git a/rpcs3/Emu/Cell/lv2/sys_usbd.cpp b/rpcs3/Emu/Cell/lv2/sys_usbd.cpp
index 3b675adbc9..9f41f0702e 100644
--- a/rpcs3/Emu/Cell/lv2/sys_usbd.cpp
+++ b/rpcs3/Emu/Cell/lv2/sys_usbd.cpp
@@ -47,9 +47,9 @@ void fmt_class_string<libusb_transfer>::format(std::string& out, u64 arg)
 struct UsbLdd
 {
 	std::string name;
-	u16 id_vendor;
-	u16 id_product_min;
-	u16 id_product_max;
+	u16 id_vendor{};
+	u16 id_product_min{};
+	u16 id_product_max{};
 };
 
 struct UsbPipe
@@ -177,7 +177,7 @@ usb_handler_thread::usb_handler_thread()
 
 	if (ndev < 0)
 	{
-		sys_usbd.error("Failed to get device list: %s", libusb_error_name(ndev));
+		sys_usbd.error("Failed to get device list: %s", libusb_error_name(static_cast<s32>(ndev)));
 		return;
 	}
 
diff --git a/rpcs3/Emu/Io/usb_device.cpp b/rpcs3/Emu/Io/usb_device.cpp
index e7074c6a6b..78d1952e3a 100644
--- a/rpcs3/Emu/Io/usb_device.cpp
+++ b/rpcs3/Emu/Io/usb_device.cpp
@@ -245,7 +245,7 @@ u32 usb_device_emulated::get_descriptor(u8 type, u8 index, u8* buf, u32 buf_size
 			else
 			{
 				const std::u16string u16str = utf8_to_utf16(strings[index - 1]);
-				const u8 len = std::min(u16str.size() * sizeof(u16) + 2, static_cast<size_t>(0xFF));
+				const u8 len = static_cast<u8>(std::min(u16str.size() * sizeof(u16) + 2, static_cast<usz>(0xFF)));
 				buf[0] = len;
 				expected_count = std::min(len, ::narrow<u8>(buf_size));
 				memcpy(buf + 2, u16str.data(), expected_count - 2);
@@ -269,7 +269,7 @@ u32 usb_device_emulated::get_status(bool self_powered, bool remote_wakeup, u8* b
 		return 0;
 	}
 
-	const u16 device_status = self_powered | remote_wakeup << 1;
+	const u16 device_status = static_cast<int>(self_powered) | static_cast<int>(remote_wakeup) << 1;
 	memcpy(buf, &device_status, expected_count);
 	return expected_count;
 }
diff --git a/rpcs3/Emu/Io/usb_device.h b/rpcs3/Emu/Io/usb_device.h
index 36d6aeb580..28f04638b1 100644
--- a/rpcs3/Emu/Io/usb_device.h
+++ b/rpcs3/Emu/Io/usb_device.h
@@ -92,7 +92,7 @@ struct UsbTransfer
 
 	s32 result = 0;
 	u32 count  = 0;
-	UsbDeviceIsoRequest iso_request;
+	UsbDeviceIsoRequest iso_request{};
 
 	std::vector<u8> setup_buf;
 	libusb_transfer* transfer = nullptr;
@@ -111,8 +111,8 @@ struct UsbTransfer
 // Usb descriptor helper
 struct UsbDescriptorNode
 {
-	u8 bLength;
-	u8 bDescriptorType;
+	u8 bLength{};
+	u8 bDescriptorType{};
 
 	union
 	{
@@ -121,7 +121,7 @@ struct UsbDescriptorNode
 		UsbDeviceInterface _interface;
 		UsbDeviceEndpoint _endpoint;
 		UsbDeviceHID _hid;
-		u8 data[0xFF];
+		u8 data[0xFF]{};
 	};
 
 	std::vector<UsbDescriptorNode> subnodes;
diff --git a/rpcs3/Emu/system_config.h b/rpcs3/Emu/system_config.h
index eed37fba87..d732fa670e 100644
--- a/rpcs3/Emu/system_config.h
+++ b/rpcs3/Emu/system_config.h
@@ -243,7 +243,7 @@ struct cfg_root : cfg::node
 		cfg::_bool dump_to_file{ this, "Dump to file", false, true };
 		cfg::_bool convert_to_s16{ this, "Convert to 16 bit", false, true };
 		cfg::_enum<audio_format> format{ this, "Audio Format", audio_format::stereo, false };
-		cfg::uint<0, umax> formats{ this, "Audio Formats", static_cast<u32>(audio_format_flag::lpcm_2_48khz), false };
+		cfg::uint<0, 0xFF> formats{ this, "Audio Formats", static_cast<u32>(audio_format_flag::lpcm_2_48khz), false };
 		cfg::string audio_device{ this, "Audio Device", "@@@default@@@", true };
 		cfg::_int<0, 200> volume{ this, "Master Volume", 100, true };
 		cfg::_bool enable_buffering{ this, "Enable Buffering", true, true };
diff --git a/rpcs3/rpcs3qt/rsx_debugger.cpp b/rpcs3/rpcs3qt/rsx_debugger.cpp
index 8369b2ee98..44247de471 100644
--- a/rpcs3/rpcs3qt/rsx_debugger.cpp
+++ b/rpcs3/rpcs3qt/rsx_debugger.cpp
@@ -743,7 +743,7 @@ void rsx_debugger::GetBuffers() const
 		}
 
 		// Touch RSX memory to potentially flush GPU memory (must occur in named_thread)
-		named_thread("RSX Buffer Touch", [&]()
+		[[maybe_unused]] auto buffer_touch_1 = named_thread("RSX Buffer Touch"sv, [&]()
 		{
 			for (u32 page_start = rsx_buffer_addr & -4096; page_start < rsx_buffer_addr + src_mem_size; page_start += 4096)
 			{
@@ -781,7 +781,7 @@ void rsx_debugger::GetBuffers() const
 		{
 			for (u32 y = 0; y < height; y++)
 			{
-				for (u32 x = pitch - 2; x != -2u; x -= 2)
+				for (u32 x = 0; x < std::max(pitch, 1u) - 1; x += 2)
 				{
 					const usz line_start = y * pitch;
 
@@ -904,7 +904,7 @@ void rsx_debugger::GetBuffers() const
 		}
 
 		// Touch RSX memory to potentially flush GPU memory (must occur in named_thread)
-		named_thread("RSX Buffer Touch", [&]()
+		[[maybe_unused]] auto buffer_touch_2 = named_thread("RSX Buffer Touch"sv, [&]()
 		{
 			for (u32 page_start = rsx_buffer_addr & -4096; page_start < rsx_buffer_addr + src_mem_size; page_start += 4096)
 			{
@@ -1059,7 +1059,7 @@ void rsx_debugger::GetBuffers() const
 		return;
 	}
 
-	named_thread("RSX Buffer Touch", [&]()
+	[[maybe_unused]] auto buffer_touch_3 = named_thread("RSX Buffer Touch"sv, [&]()
 	{
 		// Must touch every page
 		for (u32 i = texture_addr & -4096; i < texture_addr + src_mem_size; i += 4096)
diff --git a/rpcs3/util/typeindices.hpp b/rpcs3/util/typeindices.hpp
index 4f8e907362..cb9b3b2748 100644
--- a/rpcs3/util/typeindices.hpp
+++ b/rpcs3/util/typeindices.hpp
@@ -26,7 +26,7 @@ namespace stx
 		u32 size = 1;
 		u32 align = 1;
 		u32 begin = 0;
-		double order;
+		double order{};
 
 		// Next typeinfo in linked list
 		type_info* next = nullptr;