diff --git a/src/duplicacy_oneclient.go b/src/duplicacy_oneclient.go
index 9bdeb6f1..0f25bb91 100644
--- a/src/duplicacy_oneclient.go
+++ b/src/duplicacy_oneclient.go
@@ -51,7 +51,7 @@ type OneDriveClient struct {
 	APIURL string
 }
 
-func NewOneDriveClient(tokenFile string, isBusiness bool, client_id string, client_secret string) (*OneDriveClient, error) {
+func NewOneDriveClient(tokenFile string, isBusiness bool, client_id string, client_secret string, drive_id string) (*OneDriveClient, error) {
 
 	description, err := ioutil.ReadFile(tokenFile)
 	if err != nil {
@@ -88,10 +88,13 @@ func NewOneDriveClient(tokenFile string, isBusiness bool, client_id string, clie
 
 	if isBusiness {
 		client.RefreshTokenURL = "https://duplicacy.com/odb_refresh"
-		client.APIURL = "https://graph.microsoft.com/v1.0/me"
+		client.APIURL = "https://graph.microsoft.com/v1.0/me/drive"
+		if drive_id != "" {
+			client.APIURL = "https://graph.microsoft.com/v1.0/drives/"+drive_id
+		}
 	} else {
 		client.RefreshTokenURL = "https://duplicacy.com/one_refresh"
-		client.APIURL = "https://api.onedrive.com/v1.0"
+		client.APIURL = "https://api.onedrive.com/v1.0/drive"
 	}
 
 	client.RefreshToken(false)
@@ -285,9 +288,9 @@ func (client *OneDriveClient) ListEntries(path string) ([]OneDriveEntry, error)
 
 	entries := []OneDriveEntry{}
 
-	url := client.APIURL + "/drive/root:/" + path + ":/children"
+	url := client.APIURL + "/root:/" + path + ":/children"
 	if path == "" {
-		url = client.APIURL + "/drive/root/children"
+		url = client.APIURL + "/root/children"
 	}
 	if client.TestMode {
 		url += "?top=8"
@@ -323,7 +326,8 @@ func (client *OneDriveClient) ListEntries(path string) ([]OneDriveEntry, error)
 
 func (client *OneDriveClient) GetFileInfo(path string) (string, bool, int64, error) {
 
-	url := client.APIURL + "/drive/root:/" + path
+	url := client.APIURL + "/root:/" + path
+	if path == "" { url = client.APIURL + "/root" }
 	url += "?select=id,name,size,folder"
 
 	readCloser, _, err := client.call(url, "GET", 0, "")
@@ -348,7 +352,7 @@ func (client *OneDriveClient) GetFileInfo(path string) (string, bool, int64, err
 
 func (client *OneDriveClient) DownloadFile(path string) (io.ReadCloser, int64, error) {
 
-	url := client.APIURL + "/drive/items/root:/" + path + ":/content"
+	url := client.APIURL + "/items/root:/" + path + ":/content"
 
 	return client.call(url, "GET", 0, "")
 }
@@ -358,7 +362,7 @@ func (client *OneDriveClient) UploadFile(path string, content []byte, rateLimit
 	// Upload file using the simple method; this is only possible for OneDrive Personal or if the file
 	// is smaller than 4MB for OneDrive Business
 	if !client.IsBusiness || (client.TestMode && rand.Int() % 2 == 0) {
-		url := client.APIURL + "/drive/root:/" + path + ":/content"
+		url := client.APIURL + "/root:/" + path + ":/content"
 
 		readCloser, _, err := client.call(url, "PUT", CreateRateLimitedReader(content, rateLimit), "application/octet-stream")
 		if err != nil {
@@ -392,7 +396,7 @@ func (client *OneDriveClient) CreateUploadSession(path string) (uploadURL string
 		},
 	}
 
-	readCloser, _, err := client.call(client.APIURL + "/drive/root:/" + path + ":/createUploadSession", "POST", input, "application/json")
+	readCloser, _, err := client.call(client.APIURL + "/root:/" + path + ":/createUploadSession", "POST", input, "application/json")
 	if err != nil {
 		return "", err
 	}
@@ -436,7 +440,7 @@ func (client *OneDriveClient) UploadFileSession(uploadURL string, content []byte
 
 func (client *OneDriveClient) DeleteFile(path string) error {
 
-	url := client.APIURL + "/drive/root:/" + path
+	url := client.APIURL + "/root:/" + path
 
 	readCloser, _, err := client.call(url, "DELETE", 0, "")
 	if err != nil {
@@ -449,10 +453,10 @@ func (client *OneDriveClient) DeleteFile(path string) error {
 
 func (client *OneDriveClient) MoveFile(path string, parent string) error {
 
-	url := client.APIURL + "/drive/root:/" + path
+	url := client.APIURL + "/root:/" + path
 
 	parentReference := make(map[string]string)
-	parentReference["path"] = "/drive/root:/" + parent
+	parentReference["path"] = "/root:/" + parent
 
 	parameters := make(map[string]interface{})
 	parameters["parentReference"] = parentReference
@@ -504,7 +508,7 @@ func (client *OneDriveClient) CreateDirectory(path string, name string) error {
 			return fmt.Errorf("The path '%s' is not a directory", path)
 		}
 
-		url = client.APIURL + "/drive/root:/" + path + ":/children"
+		url = client.APIURL + "/root:/" + path + ":/children"
 	}
 
 	parameters := make(map[string]interface{})
diff --git a/src/duplicacy_onestorage.go b/src/duplicacy_onestorage.go
index 2e24333c..fb0fc804 100644
--- a/src/duplicacy_onestorage.go
+++ b/src/duplicacy_onestorage.go
@@ -19,13 +19,13 @@ type OneDriveStorage struct {
 }
 
 // CreateOneDriveStorage creates an OneDrive storage object.
-func CreateOneDriveStorage(tokenFile string, isBusiness bool, storagePath string, threads int, client_id string, client_secret string) (storage *OneDriveStorage, err error) {
+func CreateOneDriveStorage(tokenFile string, isBusiness bool, storagePath string, threads int, client_id string, client_secret string, drive_id string) (storage *OneDriveStorage, err error) {
 
 	for len(storagePath) > 0 && storagePath[len(storagePath)-1] == '/' {
 		storagePath = storagePath[:len(storagePath)-1]
 	}
 
-	client, err := NewOneDriveClient(tokenFile, isBusiness, client_id, client_secret)
+	client, err := NewOneDriveClient(tokenFile, isBusiness, client_id, client_secret, drive_id)
 	if err != nil {
 		return nil, err
 	}
diff --git a/src/duplicacy_storage.go b/src/duplicacy_storage.go
index 99059712..0ad6891d 100644
--- a/src/duplicacy_storage.go
+++ b/src/duplicacy_storage.go
@@ -261,7 +261,8 @@ func CreateStorage(preference Preference, resetPassword bool, threads int) (stor
 		return fileStorage
 	}
 
-	urlRegex := regexp.MustCompile(`^([\w-]+)://([\w\-@\.]+@)?([^/]+)(/(.+))?`)
+	// Added \! to matched[2] because OneDrive drive ids contain ! (e.g. "b!xxx")
+	urlRegex := regexp.MustCompile(`^([\w-]+)://([\w\-@\.\!]+@)?([^/]+)(/(.+))?`)
 
 	matched := urlRegex.FindStringSubmatch(storageURL)
 
@@ -644,6 +645,15 @@ func CreateStorage(preference Preference, resetPassword bool, threads int) (stor
 		SavePassword(preference, "gcd_token", tokenFile)
 		return gcdStorage
 	} else if matched[1] == "one" || matched[1] == "odb" {
+		// Handle writing directly to the root of the drive
+		// For odb://drive_id@/, drive_id@ is match[3] not match[2]
+		if matched[2] == "" && strings.HasSuffix(matched[3], "@") {
+			matched[2], matched[3]  = matched[3], matched[2]
+		}
+		drive_id := matched[2]
+		if len(drive_id) > 0 {
+			drive_id = drive_id[:len(drive_id)-1]
+		}
 		storagePath := matched[3] + matched[4]
 		prompt := fmt.Sprintf("Enter the path of the OneDrive token file (downloadable from https://duplicacy.com/one_start):")
 		tokenFile := GetPassword(preference, matched[1] + "_token", prompt, true, resetPassword)
@@ -659,7 +669,7 @@ func CreateStorage(preference Preference, resetPassword bool, threads int) (stor
 			client_secret = GetPassword(preference, matched[1] + "_client_secret", prompt, true, resetPassword)
 		}
 
-		oneDriveStorage, err := CreateOneDriveStorage(tokenFile, matched[1] == "odb", storagePath, threads, client_id, client_secret)
+		oneDriveStorage, err := CreateOneDriveStorage(tokenFile, matched[1] == "odb", storagePath, threads, client_id, client_secret, drive_id)
 		if err != nil {
 			LOG_ERROR("STORAGE_CREATE", "Failed to load the OneDrive storage at %s: %v", storageURL, err)
 			return nil