diff --git a/Common/File/FileUtil.cpp b/Common/File/FileUtil.cpp
index 03cc5a649a..2cef9f29f4 100644
--- a/Common/File/FileUtil.cpp
+++ b/Common/File/FileUtil.cpp
@@ -245,7 +245,7 @@ bool IsDirectory(const std::string &filename)
 	std::wstring copy = ConvertUTF8ToWString(fn);
 	WIN32_FILE_ATTRIBUTE_DATA data{};
 	if (!GetFileAttributesEx(copy.c_str(), GetFileExInfoStandard, &data) || data.dwFileAttributes == INVALID_FILE_ATTRIBUTES) {
-		WARN_LOG(COMMON, "GetFileAttributes failed on %s: %08x", fn.c_str(), GetLastError());
+		WARN_LOG(COMMON, "GetFileAttributes failed on %s: %08x", fn.c_str(), (uint32_t)GetLastError());
 		return false;
 	}
 	DWORD result = data.dwFileAttributes;
@@ -311,7 +311,7 @@ bool CreateDir(const std::string &path)
 		WARN_LOG(COMMON, "CreateDir: CreateDirectory failed on %s: already exists", path.c_str());
 		return true;
 	}
-	ERROR_LOG(COMMON, "CreateDir: CreateDirectory failed on %s: %i", path.c_str(), error);
+	ERROR_LOG(COMMON, "CreateDir: CreateDirectory failed on %s: %08x", path.c_str(), (uint32_t)error);
 	return false;
 #else
 	if (mkdir(fn.c_str(), 0755) == 0)
diff --git a/Core/FileSystems/DirectoryFileSystem.cpp b/Core/FileSystems/DirectoryFileSystem.cpp
index 1cbd075b97..8c559f46b3 100644
--- a/Core/FileSystems/DirectoryFileSystem.cpp
+++ b/Core/FileSystems/DirectoryFileSystem.cpp
@@ -630,7 +630,7 @@ int DirectoryFileSystem::OpenFile(std::string filename, FileAccess access, const
 	err = ReplayApplyDisk(ReplayAction::FILE_OPEN, err, CoreTiming::GetGlobalTimeUs());
 	if (err != 0) {
 #ifdef _WIN32
-		ERROR_LOG(FILESYS, "DirectoryFileSystem::OpenFile: FAILED, %i - access = %i", GetLastError(), (int)access);
+		ERROR_LOG(FILESYS, "DirectoryFileSystem::OpenFile: FAILED, %i - access = %i", (int)GetLastError(), (int)access);
 #else
 		ERROR_LOG(FILESYS, "DirectoryFileSystem::OpenFile: FAILED, %i - access = %i", errno, (int)access);
 #endif
diff --git a/Core/FileSystems/VirtualDiscFileSystem.cpp b/Core/FileSystems/VirtualDiscFileSystem.cpp
index 4c1f5c324c..0805688d88 100644
--- a/Core/FileSystems/VirtualDiscFileSystem.cpp
+++ b/Core/FileSystems/VirtualDiscFileSystem.cpp
@@ -372,7 +372,7 @@ int VirtualDiscFileSystem::OpenFile(std::string filename, FileAccess access, con
 
 		if (!success) {
 #ifdef _WIN32
-			ERROR_LOG(FILESYS, "VirtualDiscFileSystem::OpenFile: FAILED, %i", GetLastError());
+			ERROR_LOG(FILESYS, "VirtualDiscFileSystem::OpenFile: FAILED, %i", (int)GetLastError());
 #else
 			ERROR_LOG(FILESYS, "VirtualDiscFileSystem::OpenFile: FAILED");
 #endif
@@ -398,7 +398,7 @@ int VirtualDiscFileSystem::OpenFile(std::string filename, FileAccess access, con
 
 	if (!success) {
 #ifdef _WIN32
-		ERROR_LOG(FILESYS, "VirtualDiscFileSystem::OpenFile: FAILED, %i - access = %i", GetLastError(), (int)access);
+		ERROR_LOG(FILESYS, "VirtualDiscFileSystem::OpenFile: FAILED, %i - access = %i", (int)GetLastError(), (int)access);
 #else
 		ERROR_LOG(FILESYS, "VirtualDiscFileSystem::OpenFile: FAILED, access = %i", (int)access);
 #endif
diff --git a/Core/Instance.cpp b/Core/Instance.cpp
index 43536418e3..355edb4a5b 100644
--- a/Core/Instance.cpp
+++ b/Core/Instance.cpp
@@ -64,7 +64,7 @@ static bool UpdateInstanceCounter(void (*callback)(volatile InstanceInfo *)) {
 		sizeof(InstanceInfo));
 
 	if (!buf) {
-		ERROR_LOG(SCENET, "Could not map view of file %s (%d).", ID_SHM_NAME, GetLastError());
+		ERROR_LOG(SCENET, "Could not map view of file %s (%08x)", ID_SHM_NAME, (uint32_t)GetLastError());
 		return false;
 	}
 
@@ -136,7 +136,7 @@ void InitInstanceCounter() {
 
 	DWORD lasterr = GetLastError();
 	if (!hIDMapFile) {
-		ERROR_LOG(SCENET, "Could not create %s file mapping object (%d).", ID_SHM_NAME, lasterr);
+		ERROR_LOG(SCENET, "Could not create %s file mapping object (%08x)", ID_SHM_NAME, (uint32_t)lasterr);
 		PPSSPP_ID = 1;
 		return;
 	}
diff --git a/GPU/D3D11/TextureCacheD3D11.cpp b/GPU/D3D11/TextureCacheD3D11.cpp
index 8e4aadfc0a..ab9d708409 100644
--- a/GPU/D3D11/TextureCacheD3D11.cpp
+++ b/GPU/D3D11/TextureCacheD3D11.cpp
@@ -697,7 +697,7 @@ void TextureCacheD3D11::LoadTextureLevel(TexCacheEntry &entry, ReplacedTexture &
 			size_t bufSize = sizeof(u32) * (mapRowPitch / bpp) * h;
 			mapData = (u32 *)AllocateAlignedMemory(bufSize, 16);
 			if (!mapData) {
-				ERROR_LOG(G3D, "Ran out of RAM trying to allocate a temporary texture upload buffer (alloc size: %d, %dx%d)", bufSize, mapRowPitch / sizeof(u32), h);
+				ERROR_LOG(G3D, "Ran out of RAM trying to allocate a temporary texture upload buffer (alloc size: %lld, %dx%d)", (unsigned long long)bufSize, mapRowPitch / (int)sizeof(u32), h);
 				return;
 			}
 			pixelData = (u32 *)mapData;
diff --git a/GPU/Directx9/FramebufferManagerDX9.cpp b/GPU/Directx9/FramebufferManagerDX9.cpp
index f47678456c..dce162f49d 100644
--- a/GPU/Directx9/FramebufferManagerDX9.cpp
+++ b/GPU/Directx9/FramebufferManagerDX9.cpp
@@ -213,7 +213,7 @@ static const D3DVERTEXELEMENT9 g_FramebufferVertexElements[] = {
 		dxstate.stencilMask.set(0xFF);
 		HRESULT hr = device_->DrawPrimitiveUP(D3DPT_TRIANGLEFAN, 2, coord, 5 * sizeof(float));
 		if (FAILED(hr)) {
-			ERROR_LOG_REPORT(G3D, "DrawActiveTexture() failed: %08x", hr);
+			ERROR_LOG_REPORT(G3D, "DrawActiveTexture() failed: %08x", (uint32_t)hr);
 		}
 	}
 
@@ -377,7 +377,7 @@ static const D3DVERTEXELEMENT9 g_FramebufferVertexElements[] = {
 					ConvertFromBGRA8888(Memory::GetPointer(fb_address + dstByteOffset), (u8 *)locked.pBits, vfb->fb_stride, locked.Pitch / 4, w, h, vfb->format);
 					offscreen->UnlockRect();
 				} else {
-					ERROR_LOG_REPORT(G3D, "Unable to lock rect from %08x: %d,%d %dx%d of %dx%d", fb_address, rect.left, rect.top, rect.right, rect.bottom, vfb->renderWidth, vfb->renderHeight);
+					ERROR_LOG_REPORT(G3D, "Unable to lock rect from %08x: %d,%d %dx%d of %dx%d", fb_address, (int)rect.left, (int)rect.top, (int)rect.right, (int)rect.bottom, vfb->renderWidth, vfb->renderHeight);
 				}
 			} else {
 				ERROR_LOG_REPORT(G3D, "Unable to download render target data from %08x", fb_address);
@@ -428,7 +428,7 @@ static const D3DVERTEXELEMENT9 g_FramebufferVertexElements[] = {
 
 				tex->UnlockRect(0);
 			} else {
-				ERROR_LOG_REPORT(G3D, "Unable to lock rect from depth %08x: %d,%d %dx%d of %dx%d", vfb->fb_address, rect.left, rect.top, rect.right, rect.bottom, vfb->renderWidth, vfb->renderHeight);
+				ERROR_LOG_REPORT(G3D, "Unable to lock rect from depth %08x: %d,%d %dx%d of %dx%d", vfb->fb_address, (int)rect.left, (int)rect.top, (int)rect.right, (int)rect.bottom, vfb->renderWidth, vfb->renderHeight);
 			}
 		} else {
 			ERROR_LOG_REPORT(G3D, "Unable to download render target depth from %08x", vfb->fb_address);
diff --git a/GPU/Directx9/StencilBufferDX9.cpp b/GPU/Directx9/StencilBufferDX9.cpp
index d8e740836b..5da225ae2c 100644
--- a/GPU/Directx9/StencilBufferDX9.cpp
+++ b/GPU/Directx9/StencilBufferDX9.cpp
@@ -244,7 +244,7 @@ bool FramebufferManagerDX9::NotifyStencilUpload(u32 addr, int size, StencilUploa
 		}
 		HRESULT hr = device_->DrawPrimitiveUP(D3DPT_TRIANGLESTRIP, 2, coord, 5 * sizeof(float));
 		if (FAILED(hr)) {
-			ERROR_LOG_REPORT(G3D, "Failed to draw stencil bit %x: %08x", i, hr);
+			ERROR_LOG_REPORT(G3D, "Failed to draw stencil bit %x: %08x", i, (uint32_t)hr);
 		}
 	}
 
diff --git a/GPU/Directx9/TextureCacheDX9.cpp b/GPU/Directx9/TextureCacheDX9.cpp
index 9cfb36935e..3f19241382 100644
--- a/GPU/Directx9/TextureCacheDX9.cpp
+++ b/GPU/Directx9/TextureCacheDX9.cpp
@@ -315,7 +315,7 @@ public:
 		device_->SetViewport(&vp);
 		HRESULT hr = device_->DrawPrimitiveUP(D3DPT_TRIANGLESTRIP, 2, verts_, (3 + 2) * sizeof(float));
 		if (FAILED(hr)) {
-			ERROR_LOG_REPORT(G3D, "Depal render failed: %08x", hr);
+			ERROR_LOG_REPORT(G3D, "Depal render failed: %08x", (uint32_t)hr);
 		}
 
 		dxstate.Restore();
diff --git a/Windows/EmuThread.cpp b/Windows/EmuThread.cpp
index 120130161e..7cf7c7170e 100644
--- a/Windows/EmuThread.cpp
+++ b/Windows/EmuThread.cpp
@@ -202,7 +202,7 @@ void MainThreadFunc() {
 		std::string full_error = StringFromFormat("%s\n\n%s", genericError, error_string.c_str());
 		std::wstring title = ConvertUTF8ToWString(err->T("GenericGraphicsError", "Graphics Error"));
 		bool yes = IDYES == MessageBox(0, ConvertUTF8ToWString(full_error).c_str(), title.c_str(), MB_ICONERROR | MB_YESNO);
-		ERROR_LOG(BOOT, full_error.c_str());
+		ERROR_LOG(BOOT, "%s", full_error.c_str());
 
 		if (yes) {
 			// Change the config to the alternative and restart.
diff --git a/Windows/GEDebugger/SimpleGLWindow.cpp b/Windows/GEDebugger/SimpleGLWindow.cpp
index 37e6b7bd28..f27cfeadc8 100644
--- a/Windows/GEDebugger/SimpleGLWindow.cpp
+++ b/Windows/GEDebugger/SimpleGLWindow.cpp
@@ -109,7 +109,7 @@ void SimpleGLWindow::SetupGL() {
 	pfd.cDepthBits = 16;
 	pfd.iLayerType = PFD_MAIN_PLANE;
 
-#define ENFORCE(x, msg) { if (!(x)) { ERROR_LOG(COMMON, "SimpleGLWindow: %s (%08x)", msg, GetLastError()); return; } }
+#define ENFORCE(x, msg) { if (!(x)) { ERROR_LOG(COMMON, "SimpleGLWindow: %s (%08x)", msg, (uint32_t)GetLastError()); return; } }
 
 	ENFORCE(hDC_ = GetDC(hWnd_), "Unable to create DC.");
 	ENFORCE(pixelFormat = ChoosePixelFormat(hDC_, &pfd), "Unable to match pixel format.");
diff --git a/Windows/GPU/D3D9Context.cpp b/Windows/GPU/D3D9Context.cpp
index 0ccfa8364c..67e472d0b9 100644
--- a/Windows/GPU/D3D9Context.cpp
+++ b/Windows/GPU/D3D9Context.cpp
@@ -108,7 +108,7 @@ bool D3D9Context::Init(HINSTANCE hInst, HWND wnd, std::string *error_message) {
 	}
 
 	if (FAILED(d3d_->GetDeviceCaps(adapterId_, D3DDEVTYPE_HAL, &d3dCaps))) {
-		*error_message = "GetDeviceCaps failed (???)";
+		*error_message = "GetDeviceCaps failed (?)";
 		d3d_->Release();
 		return false;
 	}
diff --git a/Windows/WASAPIStream.cpp b/Windows/WASAPIStream.cpp
index a529dcf771..2bf597761d 100644
--- a/Windows/WASAPIStream.cpp
+++ b/Windows/WASAPIStream.cpp
@@ -127,12 +127,12 @@ public:
 	HRESULT STDMETHODCALLTYPE OnPropertyValueChanged(LPCWSTR pwstrDeviceId, const PROPERTYKEY key) override {
 		INFO_LOG(SCEAUDIO, "Changed audio device property "
 			"{%8.8x-%4.4x-%4.4x-%2.2x%2.2x-%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x}#%d",
-			key.fmtid.Data1, key.fmtid.Data2, key.fmtid.Data3,
+			(uint32_t)key.fmtid.Data1, key.fmtid.Data2, key.fmtid.Data3,
 			key.fmtid.Data4[0], key.fmtid.Data4[1],
 			key.fmtid.Data4[2], key.fmtid.Data4[3],
 			key.fmtid.Data4[4], key.fmtid.Data4[5],
 			key.fmtid.Data4[6], key.fmtid.Data4[7],
-			key.pid);
+			(int)key.pid);
 		return S_OK;
 	}