diff --git a/CHANGELOG.md b/CHANGELOG.md
index fcca01543..1bb5154f1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@
 - Fix full screen and Airplay to Mac support for Intel HD4000 iGPUs
 - Automatically set `CMIO_Unit_Input_ASC.DoNotUseOpenCL` on TeraScale 2 GPUs
 - Fix Country Code detection on Wireless Cards
+- Add Windows detection and prompt during installation
 
 ## 0.1.9
 - Fix incorrect AMFI and SIP detection
diff --git a/Resources/Build.py b/Resources/Build.py
index 7598d20fc..1d6e7ad4b 100644
--- a/Resources/Build.py
+++ b/Resources/Build.py
@@ -975,6 +975,19 @@ Please build OpenCore first!"""
         Utilities.header(["Copying OpenCore"])
 
         if mount_path.exists():
+            if (mount_path / Path("EFI/Microsoft")).exists():
+                print("- Found Windows Boot Loader")
+                print("\nWould you like to continue installing OpenCore?")
+                print("Installing OpenCore onto this drive may make Windows unbootable until OpenCore")
+                print("is removed from the partition")
+                print("We highly recommend users partition 200MB off their drive with Disk Utility")
+                print("    Name:\t\t OPENCORE")
+                print("    Format:\t FAT32")
+                print("    Size:\t\t 200MB")
+                choice = input("\nWould you like to still install OpenCore to this drive?(y/n): ")
+                if not choice in ["y", "Y", "Yes", "yes"]:
+                    subprocess.run(["diskutil", "umount", mount_path], stdout=subprocess.PIPE).stdout.decode().strip().encode()
+                    return
             if (mount_path / Path("EFI/OC")).exists():
                 print("- Removing preexisting EFI/OC folder")
                 shutil.rmtree(mount_path / Path("EFI/OC"), onerror=rmtree_handler)