diff --git a/frontend/src-tauri/src/main.rs b/frontend/src-tauri/src/main.rs
index ea6ef21..24ba4d7 100644
--- a/frontend/src-tauri/src/main.rs
+++ b/frontend/src-tauri/src/main.rs
@@ -3,7 +3,7 @@
 //! 预览 Host 只开放本地文件命令；未接通的 AI / 同步 / 凭据能力明确返回不可用。
 
 use notesagent_host::recent::{RecentVault, RecentVaultStore};
-use notesagent_host::workspace::{Document, Entry, Workspace};
+use notesagent_host::workspace::{portable_path_string, Document, Entry, Workspace};
 use std::path::Path;
 use std::sync::Mutex;
 use std::time::Duration;
@@ -18,7 +18,7 @@ struct Host {
 fn info(ws: &Workspace) -> RecentVault {
     RecentVault {
         vault_id: ws.vault_id.clone(),
-        path: ws.root.to_string_lossy().into(),
+        path: portable_path_string(&ws.root),
         name: ws
             .root
             .file_name()
@@ -164,10 +164,11 @@ fn workspace_open(host: State<'_, Host>, path: String) -> Result<RecentVault, St
         .authorized(Path::new(&path))?
         .ok_or("VAULT_NOT_AUTHORIZED")?;
     let mut guard = host.workspace.lock().map_err(|_| "HOST_BUSY")?;
-    if guard
-        .as_ref()
-        .is_some_and(|ws| ws.root == Path::new(&authorized.path))
-    {
+    if guard.as_ref().is_some_and(|ws| {
+        Path::new(&authorized.path)
+            .canonicalize()
+            .is_ok_and(|path| ws.root == path)
+    }) {
         return Ok(guard.as_ref().map(info).ok_or("VAULT_NOT_OPEN")?);
     }
     let workspace = Workspace::open(Path::new(&authorized.path)).map_err(|e| e.code)?;
diff --git a/frontend/src-tauri/src/recent.rs b/frontend/src-tauri/src/recent.rs
index ae7a5f6..145d696 100644
--- a/frontend/src-tauri/src/recent.rs
+++ b/frontend/src-tauri/src/recent.rs
@@ -3,7 +3,9 @@
 use rusqlite::{params, Connection, OptionalExtension};
 use serde::{Deserialize, Serialize};
 use std::fs;
-use std::path::{Path, PathBuf};
+use std::path::Path;
+
+use crate::workspace::{portable_path, portable_path_string};
 
 const MAX_RECENT_VAULTS: i64 = 20;
 
@@ -52,10 +54,20 @@ impl RecentVaultStore {
             })
             .map_err(|_| "RECENT_VAULT_STORE_ERROR")?;
         rows.collect::<rusqlite::Result<Vec<_>>>()
+            .map(|vaults| {
+                vaults
+                    .into_iter()
+                    .map(|mut vault| {
+                        vault.path = portable_path_string(Path::new(&vault.path));
+                        vault
+                    })
+                    .collect()
+            })
             .map_err(|_| "RECENT_VAULT_STORE_ERROR".into())
     }
 
     pub fn remember(&mut self, vault: &RecentVault) -> Result<(), String> {
+        let (canonical, portable) = path_forms(Path::new(&vault.path))?;
         let transaction = self
             .db
             .transaction()
@@ -67,11 +79,17 @@ impl RecentVaultStore {
                 |row| row.get(0),
             )
             .map_err(|_| "RECENT_VAULT_STORE_ERROR")?;
+        transaction
+            .execute(
+                "DELETE FROM recent_vaults WHERE path=? OR path=?",
+                params![canonical, portable],
+            )
+            .map_err(|_| "RECENT_VAULT_STORE_ERROR")?;
         transaction
             .execute(
                 "INSERT INTO recent_vaults(path,vault_id,name,ordering) VALUES(?,?,?,?)
                  ON CONFLICT(path) DO UPDATE SET vault_id=excluded.vault_id,name=excluded.name,ordering=excluded.ordering",
-                params![vault.path, vault.vault_id, vault.name, ordering],
+                params![portable, vault.vault_id, vault.name, ordering],
             )
             .map_err(|_| "RECENT_VAULT_STORE_ERROR")?;
         transaction
@@ -88,11 +106,11 @@ impl RecentVaultStore {
     }
 
     pub fn authorized(&self, path: &Path) -> Result<Option<RecentVault>, String> {
-        let canonical = path.canonicalize().map_err(|_| "VAULT_PATH_UNSUPPORTED")?;
-        self.db
+        let (canonical, portable) = path_forms(path)?;
+        let result = self.db
             .query_row(
-                "SELECT vault_id,path,name FROM recent_vaults WHERE path=?",
-                [canonical.to_string_lossy().as_ref()],
+                "SELECT vault_id,path,name FROM recent_vaults WHERE path=? OR path=? ORDER BY ordering DESC LIMIT 1",
+                params![canonical, portable],
                 |row| {
                     Ok(RecentVault {
                         vault_id: row.get(0)?,
@@ -102,21 +120,36 @@ impl RecentVaultStore {
                 },
             )
             .optional()
-            .map_err(|_| "RECENT_VAULT_STORE_ERROR".into())
+            .map_err(|_| "RECENT_VAULT_STORE_ERROR")?;
+        Ok(result.map(|mut vault| {
+            vault.path = portable_path_string(Path::new(&vault.path));
+            vault
+        }))
     }
 
     pub fn revoke(&mut self, path: &Path) -> Result<(), String> {
-        let canonical: PathBuf = path.canonicalize().map_err(|_| "VAULT_PATH_UNSUPPORTED")?;
+        let (canonical, portable) = path_forms(path)?;
         self.db
             .execute(
-                "DELETE FROM recent_vaults WHERE path=?",
-                [canonical.to_string_lossy().as_ref()],
+                "DELETE FROM recent_vaults WHERE path=? OR path=?",
+                params![canonical, portable],
             )
             .map_err(|_| "RECENT_VAULT_STORE_ERROR")?;
         Ok(())
     }
 }
 
+fn path_forms(path: &Path) -> Result<(String, String), String> {
+    let accessible = portable_path(path);
+    let canonical = accessible
+        .canonicalize()
+        .map_err(|_| "VAULT_PATH_UNSUPPORTED")?;
+    Ok((
+        canonical.to_string_lossy().into_owned(),
+        portable_path_string(&canonical),
+    ))
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -126,7 +159,7 @@ mod tests {
         fs::create_dir(&path).unwrap();
         RecentVault {
             vault_id: format!("id-{id}"),
-            path: path.canonicalize().unwrap().to_string_lossy().into(),
+            path: portable_path_string(&path.canonicalize().unwrap()),
             name: format!("Vault {id}"),
         }
     }
@@ -165,4 +198,39 @@ mod tests {
         assert_eq!(items[0].vault_id, "id-24");
         assert_eq!(items[19].vault_id, "id-5");
     }
+
+    #[cfg(windows)]
+    #[test]
+    fn reads_and_replaces_legacy_verbatim_paths() {
+        let temporary = tempfile::tempdir().unwrap();
+        let database = temporary.path().join("host.sqlite3");
+        let current = vault(temporary.path(), 1);
+        let legacy = Path::new(&current.path)
+            .canonicalize()
+            .unwrap()
+            .to_string_lossy()
+            .into_owned();
+        assert!(legacy.starts_with(r"\\?\"));
+
+        let mut store = RecentVaultStore::open(&database).unwrap();
+        store
+            .db
+            .execute(
+                "INSERT INTO recent_vaults VALUES (?,?,?,1)",
+                params![legacy, current.vault_id, current.name],
+            )
+            .unwrap();
+
+        assert_eq!(store.list().unwrap(), vec![current.clone()]);
+        assert_eq!(
+            store.authorized(Path::new(&current.path)).unwrap(),
+            Some(current.clone())
+        );
+        store.remember(&current).unwrap();
+        let stored: String = store
+            .db
+            .query_row("SELECT path FROM recent_vaults", [], |row| row.get(0))
+            .unwrap();
+        assert_eq!(stored, current.path);
+    }
 }
diff --git a/frontend/src-tauri/src/workspace.rs b/frontend/src-tauri/src/workspace.rs
index a2e1cf9..b0a5555 100644
--- a/frontend/src-tauri/src/workspace.rs
+++ b/frontend/src-tauri/src/workspace.rs
@@ -73,6 +73,30 @@ fn linked(path: &Path) -> std::io::Result<bool> {
     }
 }
 
+/// 将 Windows 本地磁盘的 verbatim 路径转换为适合界面和持久化的普通路径。
+/// UNC 与其他设备路径保持原样，后续仍会被 Vault 安全检查拒绝。
+pub fn portable_path(path: &Path) -> PathBuf {
+    #[cfg(windows)]
+    {
+        let raw = path.to_string_lossy();
+        if let Some(rest) = raw.strip_prefix(r"\\?\") {
+            let bytes = rest.as_bytes();
+            if bytes.len() >= 3
+                && bytes[0].is_ascii_alphabetic()
+                && bytes[1] == b':'
+                && matches!(bytes[2], b'\\' | b'/')
+            {
+                return PathBuf::from(rest);
+            }
+        }
+    }
+    path.to_path_buf()
+}
+
+pub fn portable_path_string(path: &Path) -> String {
+    portable_path(path).to_string_lossy().into_owned()
+}
+
 pub struct Workspace {
     pub root: PathBuf,
     pub vault_id: String,
@@ -82,7 +106,8 @@ pub struct Workspace {
 
 impl Workspace {
     pub fn open(root: &Path) -> Result<Self> {
-        if !root.is_dir() || linked(root)? || root.to_string_lossy().starts_with("\\\\") {
+        let root = portable_path(root);
+        if root.to_string_lossy().starts_with("\\\\") || !root.is_dir() || linked(&root)? {
             return Err(HostError::new("VAULT_PATH_UNSUPPORTED"));
         }
         let root = root.canonicalize()?;
@@ -517,6 +542,17 @@ impl Workspace {
 mod tests {
     use super::*;
 
+    #[cfg(windows)]
+    #[test]
+    fn opens_windows_verbatim_disk_path() {
+        let dir = tempfile::tempdir().unwrap();
+        let verbatim = dir.path().canonicalize().unwrap();
+        assert!(verbatim.to_string_lossy().starts_with(r"\\?\"));
+
+        let ws = Workspace::open(&verbatim).unwrap();
+        assert_eq!(portable_path(&ws.root), portable_path(&verbatim));
+    }
+
     #[test]
     fn rename_and_delete_recover_after_source_removed() {
         let dir = tempfile::tempdir().unwrap();