diff --git a/libafl/Cargo.toml b/libafl/Cargo.toml
index f0f0ac7b81..a532f598b6 100644
--- a/libafl/Cargo.toml
+++ b/libafl/Cargo.toml
@@ -99,10 +99,10 @@ lock_api = "0.4.3"
 regex = "1.4.5"
 
 [target.'cfg(windows)'.dependencies]
-windows = { version = "0.29.0", features = ["std", "Win32_Foundation", "Win32_System_Threading", "Win32_System_Diagnostics_Debug", "Win32_System_Kernel", "Win32_System_Memory", "Win32_Security"] }
+windows = { version = "0.37.0", features = ["Win32_Foundation", "Win32_System_Threading", "Win32_System_Diagnostics_Debug", "Win32_System_Kernel", "Win32_System_Memory", "Win32_Security"] }
 
 [target.'cfg(windows)'.build-dependencies]
-windows = "0.29.0"
+windows = "0.37.0"
 
 #[profile.release]
 #lto = true
diff --git a/libafl/src/bolts/shmem.rs b/libafl/src/bolts/shmem.rs
index c9f20fe1c7..935c5c536a 100644
--- a/libafl/src/bolts/shmem.rs
+++ b/libafl/src/bolts/shmem.rs
@@ -1165,7 +1165,8 @@ pub mod win32_shmem {
     const INVALID_HANDLE_VALUE: isize = -1;
 
     use windows::{
-        Win32::Foundation::{CloseHandle, BOOL, HANDLE, PSTR},
+        core::PCSTR,
+        Win32::Foundation::{CloseHandle, BOOL, HANDLE},
         Win32::System::Memory::{
             CreateFileMappingA, MapViewOfFile, OpenFileMappingA, UnmapViewOfFile,
             FILE_MAP_ALL_ACCESS, PAGE_READWRITE,
@@ -1205,14 +1206,9 @@ pub mod win32_shmem {
                     PAGE_READWRITE,
                     0,
                     map_size as u32,
-                    PSTR(map_str_bytes.as_mut_ptr()),
-                );
-                if handle == HANDLE(0) {
-                    return Err(Error::unknown(format!(
-                        "Cannot create shared memory {}",
-                        String::from_utf8_lossy(map_str_bytes)
-                    )));
-                }
+                    PCSTR(map_str_bytes.as_mut_ptr()),
+                )?;
+
                 let map = MapViewOfFile(handle, FILE_MAP_ALL_ACCESS, 0, 0, map_size) as *mut u8;
                 if map.is_null() {
                     return Err(Error::unknown(format!(
@@ -1235,16 +1231,11 @@ pub mod win32_shmem {
                 let map_str_bytes = id.id;
                 // Unlike MapViewOfFile this one needs u32
                 let handle = OpenFileMappingA(
-                    FILE_MAP_ALL_ACCESS,
+                    FILE_MAP_ALL_ACCESS.0,
                     BOOL(0),
-                    PSTR(map_str_bytes.as_ptr() as *mut _),
-                );
-                if handle == HANDLE(0) {
-                    return Err(Error::unknown(format!(
-                        "Cannot open shared memory {}",
-                        String::from_utf8_lossy(&map_str_bytes)
-                    )));
-                }
+                    PCSTR(map_str_bytes.as_ptr() as *mut _),
+                )?;
+
                 let map = MapViewOfFile(handle, FILE_MAP_ALL_ACCESS, 0, 0, map_size) as *mut u8;
                 if map.is_null() {
                     return Err(Error::unknown(format!(
diff --git a/libafl/src/executors/inprocess.rs b/libafl/src/executors/inprocess.rs
index 33b5fb6c9b..b728b8cfe3 100644
--- a/libafl/src/executors/inprocess.rs
+++ b/libafl/src/executors/inprocess.rs
@@ -1096,12 +1096,6 @@ mod windows_exception_handler {
                 compiler_fence(Ordering::SeqCst);
 
                 ExitProcess(1);
-
-                LeaveCriticalSection(
-                    (data.critical as *mut RTL_CRITICAL_SECTION)
-                        .as_mut()
-                        .unwrap(),
-                );
             }
         }
         compiler_fence(Ordering::SeqCst);
diff --git a/libafl/src/lib.rs b/libafl/src/lib.rs
index 264da7a2cf..1b27ecc1fa 100644
--- a/libafl/src/lib.rs
+++ b/libafl/src/lib.rs
@@ -374,6 +374,13 @@ impl From<TryFromSliceError> for Error {
     }
 }
 
+#[cfg(windows)]
+impl From<windows::core::Error> for Error {
+    fn from(err: windows::core::Error) -> Self {
+        Self::unknown(format!("Windows API error: {:?}", err))
+    }
+}
+
 #[cfg(feature = "python")]
 impl From<pyo3::PyErr> for Error {
     fn from(err: pyo3::PyErr) -> Self {