diff --git a/adb/adb.cpp b/adb/adb.cpp
index c5ab7b0..fd46dea 100644
--- a/adb/adb.cpp
+++ b/adb/adb.cpp
@@ -580,8 +580,8 @@
                            FILE_SHARE_READ | FILE_SHARE_WRITE, &sa,
                            OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
     if (nul_read == INVALID_HANDLE_VALUE) {
-        fprintf(stderr, "CreateFileW(nul, GENERIC_READ) failure, error %ld\n",
-                GetLastError());
+        fprintf(stderr, "CreateFileW(nul, GENERIC_READ) failed: %s\n",
+                SystemErrorCodeToString(GetLastError()).c_str());
         return -1;
     }
 
@@ -589,8 +589,8 @@
                             FILE_SHARE_READ | FILE_SHARE_WRITE, &sa,
                             OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
     if (nul_write == INVALID_HANDLE_VALUE) {
-        fprintf(stderr, "CreateFileW(nul, GENERIC_WRITE) failure, error %ld\n",
-                GetLastError());
+        fprintf(stderr, "CreateFileW(nul, GENERIC_WRITE) failed: %s\n",
+                SystemErrorCodeToString(GetLastError()).c_str());
         CloseHandle(nul_read);
         return -1;
     }
@@ -598,7 +598,8 @@
     /* create pipe, and ensure its read handle isn't inheritable */
     ret = CreatePipe( &pipe_read, &pipe_write, &sa, 0 );
     if (!ret) {
-        fprintf(stderr, "CreatePipe() failure, error %ld\n", GetLastError() );
+        fprintf(stderr, "CreatePipe() failed: %s\n",
+                SystemErrorCodeToString(GetLastError()).c_str());
         CloseHandle(nul_read);
         CloseHandle(nul_write);
         return -1;
@@ -640,8 +641,8 @@
                                              arraysize(program_path));
     if ((module_result == arraysize(program_path)) || (module_result == 0)) {
         // String truncation or some other error.
-        fprintf(stderr, "GetModuleFileNameW() failure, error %ld\n",
-                GetLastError());
+        fprintf(stderr, "GetModuleFileNameW() failed: %s\n",
+                SystemErrorCodeToString(GetLastError()).c_str());
         return -1;
     }
     WCHAR args[64];
@@ -666,7 +667,8 @@
     CloseHandle( pipe_write );
 
     if (!ret) {
-        fprintf(stderr, "CreateProcess failure, error %ld\n", GetLastError() );
+        fprintf(stderr, "CreateProcess failed: %s\n",
+                SystemErrorCodeToString(GetLastError()).c_str());
         CloseHandle( pipe_read );
         return -1;
     }
@@ -682,7 +684,8 @@
         ret = ReadFile( pipe_read, temp, 3, &count, NULL );
         CloseHandle( pipe_read );
         if ( !ret ) {
-            fprintf(stderr, "could not read ok from ADB Server, error = %ld\n", GetLastError() );
+            fprintf(stderr, "could not read ok from ADB Server, error: %s\n",
+                    SystemErrorCodeToString(GetLastError()).c_str());
             return -1;
         }
         if (count != 3 || temp[0] != 'O' || temp[1] != 'K' || temp[2] != '\n') {
diff --git a/adb/adb_auth_host.cpp b/adb/adb_auth_host.cpp
index 966e61d..e7f82a9 100644
--- a/adb/adb_auth_host.cpp
+++ b/adb/adb_auth_host.cpp
@@ -305,7 +305,10 @@
     home = getenv("ANDROID_SDK_HOME");
     if (!home) {
         WCHAR path[MAX_PATH];
-        if (FAILED(SHGetFolderPathW(NULL, CSIDL_PROFILE, NULL, 0, path))) {
+        const HRESULT hr = SHGetFolderPathW(NULL, CSIDL_PROFILE, NULL, 0, path);
+        if (FAILED(hr)) {
+            D("SHGetFolderPathW failed: %s\n",
+              SystemErrorCodeToString(hr).c_str());
             return -1;
         }
         home_str = narrow(path);
diff --git a/adb/sysdeps_win32.cpp b/adb/sysdeps_win32.cpp
index 08f267b..ef8d4e9 100644
--- a/adb/sysdeps_win32.cpp
+++ b/adb/sysdeps_win32.cpp
@@ -426,7 +426,8 @@
                 return -1;
 
             default:
-                D( "unknown error: %ld\n", err );
+                D( "unknown error: %s\n",
+                   SystemErrorCodeToString( err ).c_str() );
                 errno = ENOENT;
                 return -1;
         }
@@ -469,7 +470,8 @@
                 return -1;
 
             default:
-                D( "unknown error: %ld\n", err );
+                D( "unknown error: %s\n",
+                   SystemErrorCodeToString( err ).c_str() );
                 errno = ENOENT;
                 return -1;
         }
@@ -2315,7 +2317,7 @@
         memset(input_record, 0, sizeof(*input_record));
         if (!ReadConsoleInputA(console, input_record, 1, &read_count)) {
             D("_get_interesting_input_record_uncached: ReadConsoleInputA() "
-              "failure, error %ld\n", GetLastError());
+              "failed: %s\n", SystemErrorCodeToString(GetLastError()).c_str());
             errno = EIO;
             return false;
         }
@@ -3129,8 +3131,8 @@
         if (!SetConsoleMode(in, _old_console_mode & ~(ENABLE_PROCESSED_INPUT |
             ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT))) {
             // This really should not fail.
-            D("stdin_raw_init: SetConsoleMode() failure, error %ld\n",
-                GetLastError());
+            D("stdin_raw_init: SetConsoleMode() failed: %s\n",
+              SystemErrorCodeToString(GetLastError()).c_str());
         }
 
         // Once this is set, it means that stdin has been configured for
@@ -3151,8 +3153,8 @@
 
             if (!SetConsoleMode(in, _old_console_mode)) {
                 // This really should not fail.
-                D("stdin_raw_restore: SetConsoleMode() failure, error %ld\n",
-                    GetLastError());
+                D("stdin_raw_restore: SetConsoleMode() failed: %s\n",
+                  SystemErrorCodeToString(GetLastError()).c_str());
             }
         }
     }