diff --git a/dlls/advapi32/tests/registry.c b/dlls/advapi32/tests/registry.c
index 870275e7c35..307d1c77dac 100644
--- a/dlls/advapi32/tests/registry.c
+++ b/dlls/advapi32/tests/registry.c
@@ -401,9 +401,9 @@ static void test_set_value(void)
 
     /* test RegSetValueExW with data = 1 */
     ret = RegSetValueExW(hkey_main, name2W, 0, REG_SZ, (const BYTE *)1, 1);
-    ok(ret == ERROR_NOACCESS, "RegSetValueExW should have failed with with ERROR_NOACCESS: %d, GLE=%d\n", ret, GetLastError());
+    ok(ret == ERROR_NOACCESS, "RegSetValueExW should have failed with ERROR_NOACCESS: %d, GLE=%d\n", ret, GetLastError());
     ret = RegSetValueExW(hkey_main, name2W, 0, REG_DWORD, (const BYTE *)1, 1);
-    ok(ret == ERROR_NOACCESS, "RegSetValueExW should have failed with with ERROR_NOACCESS: %d, GLE=%d\n", ret, GetLastError());
+    ok(ret == ERROR_NOACCESS, "RegSetValueExW should have failed with ERROR_NOACCESS: %d, GLE=%d\n", ret, GetLastError());
 }
 
 static void create_test_entries(void)
diff --git a/dlls/dinput/tests/keyboard.c b/dlls/dinput/tests/keyboard.c
index 4cd36c458a3..fe5fa896c35 100644
--- a/dlls/dinput/tests/keyboard.c
+++ b/dlls/dinput/tests/keyboard.c
@@ -183,8 +183,8 @@ static void test_capabilities(LPDIRECTINPUT pDI, HWND hwnd)
     caps.dwSize = sizeof(caps);
     hr = IDirectInputDevice_GetCapabilities(pKeyboard, &caps);
 
-    ok (SUCCEEDED(hr), "GetCapabilites failed: 0x%08x\n", hr);
-    ok (caps.dwFlags & DIDC_ATTACHED, "GetCapabilites dwFlags: 0x%08x\n", caps.dwFlags);
+    ok (SUCCEEDED(hr), "GetCapabilities failed: 0x%08x\n", hr);
+    ok (caps.dwFlags & DIDC_ATTACHED, "GetCapabilities dwFlags: 0x%08x\n", caps.dwFlags);
     ok (LOWORD(LOBYTE(caps.dwDevType)) == DIDEVTYPE_KEYBOARD,
         "GetCapabilities invalid device type for dwDevType: 0x%08x\n", caps.dwDevType);
     ok (LOWORD(HIBYTE(caps.dwDevType)) != DIDEVTYPEKEYBOARD_UNKNOWN,
diff --git a/dlls/dssenh/tests/dssenh.c b/dlls/dssenh/tests/dssenh.c
index 9d29a0fef0c..bf79407caf9 100644
--- a/dlls/dssenh/tests/dssenh.c
+++ b/dlls/dssenh/tests/dssenh.c
@@ -562,7 +562,7 @@ static const struct encrypt_test encrypt_data[] = {
     {CALG_DES, 56 << 16, dataToEncrypt3, sizeof(dataToEncrypt3), (BYTE *)dataToEncrypt3,
         encryptedDES_3},
     /* CALG_RC2 key unexpected results under Win2K when default key length is used, here we use
-       minimum length because Win2K's DSSENH provider has a differnt default key length compared
+       minimum length because Win2K's DSSENH provider has a different default key length compared
        to the younger operating systems, though there is no default key len issue with CALG_RC4 */
     {CALG_RC2, 40 << 16, dataToEncrypt1, sizeof(dataToEncrypt1), (BYTE *)dataToEncrypt1,
         encryptedRC2_1},
@@ -1192,7 +1192,7 @@ static void test_keyExchange_baseDSS(HCRYPTPROV hProv, const struct keyExchange_
 
         ok(!memcmp(pbData1, pbData2, dataLen), "Decrypted data is not identical.\n");
 
-        /* Destory all user keys */
+        /* Destroy all user keys */
         result = CryptDestroyKey(sessionKey1);
         ok((!result && GetLastError() ==  ERROR_INVALID_PARAMETER) || broken(result),
             "Expected ERROR_INVALID_PARAMETER, got %x\n", GetLastError()); /* WinNT4 */
@@ -1317,7 +1317,7 @@ static void test_keyExchange_dssDH(HCRYPTPROV hProv, const struct keyExchange_te
 
         ok(!memcmp(pbData1, pbData2, dataLen), "Decrypted data is not identical.\n");
 
-        /* Destory all user keys */
+        /* Destroy all user keys */
         result = CryptDestroyKey(sessionKey1);
         ok(result, "Failed to destroy session key 1, got %x\n", GetLastError());
 
diff --git a/dlls/kernel32/tests/volume.c b/dlls/kernel32/tests/volume.c
index 8152ae18c28..d788c814643 100644
--- a/dlls/kernel32/tests/volume.c
+++ b/dlls/kernel32/tests/volume.c
@@ -807,7 +807,7 @@ static void test_dvd_read_structure(HANDLE handle)
     SetLastError(0xdeadbeef);
 
     /* On newer version, an output buffer of sizeof(DVD_READ_STRUCTURE) size fails.
-        I think this is to force developpers to realize that there is a header before the actual content */
+        I think this is to force developers to realize that there is a header before the actual content */
     ret = DeviceIoControl(handle, IOCTL_DVD_READ_STRUCTURE, &dvdReadStructure, sizeof(DVD_READ_STRUCTURE),
         &dvdLayerDescriptor, sizeof(DVD_LAYER_DESCRIPTOR), &nbBytes, NULL);
     ok( (!ret && GetLastError() == ERROR_INVALID_PARAMETER) || broken(ret) /* < Win7 */,
diff --git a/dlls/shell32/shellpath.c b/dlls/shell32/shellpath.c
index 41730ead1e7..00ee0790ea3 100644
--- a/dlls/shell32/shellpath.c
+++ b/dlls/shell32/shellpath.c
@@ -2648,7 +2648,7 @@ static void _SHCreateSymbolicLinks(void)
 
     /* Create symbolic links for 'My Pictures', 'My Videos' and 'My Music'. */
     for (i=0; i < sizeof(aidsMyStuff)/sizeof(aidsMyStuff[0]); i++) {
-        /* Create the current 'My Whatever' folder and get it's unix path. */
+        /* Create the current 'My Whatever' folder and get its unix path. */
         hr = SHGetFolderPathW(NULL, acsidlMyStuff[i]|CSIDL_FLAG_CREATE, NULL,
                               SHGFP_TYPE_DEFAULT, wszTempPath);
         if (FAILED(hr)) continue;