diff --git a/vm/Cargo.toml b/vm/Cargo.toml
index a157bcf73..f7a38d670 100644
--- a/vm/Cargo.toml
+++ b/vm/Cargo.toml
@@ -128,6 +128,7 @@ features = [
   "Win32_Security",
   "Win32_Storage_FileSystem",
   "Win32_System_Console",
+  "Win32_System_Diagnostics_Debug",
   "Win32_System_LibraryLoader",
   "Win32_System_Memory",
   "Win32_System_Pipes",
@@ -142,8 +143,8 @@ features = [
 version = "0.3.9"
 features = [
   "winsock2", "handleapi", "std", "winbase",
-  "winnt", "errhandlingapi",
-  "impl-default", "vcruntime",
+  "winnt",
+  "impl-default",
 ]
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
diff --git a/vm/src/stdlib/msvcrt.rs b/vm/src/stdlib/msvcrt.rs
index b6f933aea..fc6ed24d3 100644
--- a/vm/src/stdlib/msvcrt.rs
+++ b/vm/src/stdlib/msvcrt.rs
@@ -9,9 +9,9 @@ mod msvcrt {
         PyRef, PyResult, VirtualMachine,
     };
     use itertools::Itertools;
-    use winapi::{
-        shared::minwindef::UINT,
-        um::{handleapi::INVALID_HANDLE_VALUE, winnt::HANDLE},
+    use windows_sys::Win32::{
+        Foundation::{HANDLE, INVALID_HANDLE_VALUE},
+        System::Diagnostics::Debug,
     };
 
     #[pyattr]
@@ -111,7 +111,7 @@ mod msvcrt {
 
     #[allow(non_snake_case)]
     #[pyfunction]
-    fn SetErrorMode(mode: UINT, _: &VirtualMachine) -> UINT {
-        unsafe { suppress_iph!(winapi::um::errhandlingapi::SetErrorMode(mode)) }
+    fn SetErrorMode(mode: Debug::THREAD_ERROR_MODE, _: &VirtualMachine) -> u32 {
+        unsafe { suppress_iph!(Debug::SetErrorMode(mode)) }
     }
 }
diff --git a/vm/src/stdlib/nt.rs b/vm/src/stdlib/nt.rs
index 2f78f67ad..37064d20c 100644
--- a/vm/src/stdlib/nt.rs
+++ b/vm/src/stdlib/nt.rs
@@ -23,14 +23,16 @@ pub(crate) mod module {
         },
         PyResult, TryFromObject, VirtualMachine,
     };
+    use libc::intptr_t;
     use std::{
         env, fs, io,
         mem::MaybeUninit,
         os::windows::ffi::{OsStrExt, OsStringExt},
     };
-    use winapi::{um, vc::vcruntime::intptr_t};
+    use winapi::um;
     use windows_sys::Win32::{
         Foundation::{CloseHandle, INVALID_HANDLE_VALUE},
+        Storage::FileSystem,
         System::{Console, Threading},
     };
 
@@ -39,9 +41,9 @@ pub(crate) mod module {
 
     #[pyfunction]
     pub(super) fn access(path: OsPath, mode: u8, vm: &VirtualMachine) -> PyResult<bool> {
-        use um::{fileapi, winnt};
-        let attr = unsafe { fileapi::GetFileAttributesW(path.to_widecstring(vm)?.as_ptr()) };
-        Ok(attr != fileapi::INVALID_FILE_ATTRIBUTES
+        use um::winnt;
+        let attr = unsafe { FileSystem::GetFileAttributesW(path.to_widecstring(vm)?.as_ptr()) };
+        Ok(attr != FileSystem::INVALID_FILE_ATTRIBUTES
             && (mode & 2 == 0
                 || attr & winnt::FILE_ATTRIBUTE_READONLY == 0
                 || attr & winnt::FILE_ATTRIBUTE_DIRECTORY != 0))
@@ -252,7 +254,7 @@ pub(crate) mod module {
         let wpath = path.to_widecstring(vm)?;
         let mut buffer = vec![0u16; winapi::shared::minwindef::MAX_PATH];
         let ret = unsafe {
-            um::fileapi::GetFullPathNameW(
+            FileSystem::GetFullPathNameW(
                 wpath.as_ptr(),
                 buffer.len() as _,
                 buffer.as_mut_ptr(),
@@ -265,7 +267,7 @@ pub(crate) mod module {
         if ret as usize > buffer.len() {
             buffer.resize(ret as usize, 0);
             let ret = unsafe {
-                um::fileapi::GetFullPathNameW(
+                FileSystem::GetFullPathNameW(
                     wpath.as_ptr(),
                     buffer.len() as _,
                     buffer.as_mut_ptr(),
@@ -286,7 +288,7 @@ pub(crate) mod module {
         let buflen = std::cmp::max(wide.len(), winapi::shared::minwindef::MAX_PATH);
         let mut buffer = vec![0u16; buflen];
         let ret = unsafe {
-            um::fileapi::GetVolumePathNameW(wide.as_ptr(), buffer.as_mut_ptr(), buflen as _)
+            FileSystem::GetVolumePathNameW(wide.as_ptr(), buffer.as_mut_ptr(), buflen as _)
         };
         if ret == 0 {
             return Err(errno_err(vm));
@@ -335,17 +337,17 @@ pub(crate) mod module {
 
     #[pyfunction]
     fn _getdiskusage(path: OsPath, vm: &VirtualMachine) -> PyResult<(u64, u64)> {
-        use um::fileapi::GetDiskFreeSpaceExW;
-        use winapi::shared::{ntdef::ULARGE_INTEGER, winerror};
+        use winapi::shared::winerror;
+        use FileSystem::GetDiskFreeSpaceExW;
 
         let wpath = path.to_widecstring(vm)?;
-        let mut _free_to_me = ULARGE_INTEGER::default();
-        let mut total = ULARGE_INTEGER::default();
-        let mut free = ULARGE_INTEGER::default();
+        let mut _free_to_me: u64 = 0;
+        let mut total: u64 = 0;
+        let mut free: u64 = 0;
         let ret =
             unsafe { GetDiskFreeSpaceExW(wpath.as_ptr(), &mut _free_to_me, &mut total, &mut free) };
         if ret != 0 {
-            return Ok(unsafe { (*total.QuadPart(), *free.QuadPart()) });
+            return Ok((total, free));
         }
         let err = io::Error::last_os_error();
         if err.raw_os_error() == Some(winerror::ERROR_DIRECTORY as i32) {
@@ -359,7 +361,7 @@ pub(crate) mod module {
                 return if ret == 0 {
                     Err(errno_err(vm))
                 } else {
-                    Ok(unsafe { (*total.QuadPart(), *free.QuadPart()) })
+                    Ok((total, free))
                 };
             }
         }
@@ -367,7 +369,7 @@ pub(crate) mod module {
     }
 
     #[pyfunction]
-    fn get_handle_inheritable(handle: intptr_t, vm: &VirtualMachine) -> PyResult<bool> {
+    fn get_handle_inheritable(handle: isize, vm: &VirtualMachine) -> PyResult<bool> {
         let mut flags = 0;
         if unsafe { um::handleapi::GetHandleInformation(handle as _, &mut flags) } == 0 {
             Err(errno_err(vm))
@@ -376,7 +378,7 @@ pub(crate) mod module {
         }
     }
 
-    pub fn raw_set_handle_inheritable(handle: intptr_t, inheritable: bool) -> io::Result<()> {
+    pub fn raw_set_handle_inheritable(handle: isize, inheritable: bool) -> io::Result<()> {
         use um::winbase::HANDLE_FLAG_INHERIT;
         let flags = if inheritable { HANDLE_FLAG_INHERIT } else { 0 };
         let res =