diff --git a/.gitignore b/.gitignore
index 53eaa21..3f2d71b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /target
 **/*.rs.bk
+navi.log
diff --git a/Cargo.lock b/Cargo.lock
index bbdffee..a379f1b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -244,6 +244,12 @@ dependencies = [
  "synstructure",
 ]
 
+[[package]]
+name = "dunce"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56ce8c6da7551ec6c462cbaf3bfbc75131ebbfa1c944aeaa9dab51ca1c5f0c3b"
+
 [[package]]
 name = "edit"
 version = "0.1.4"
@@ -412,9 +418,9 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.14"
+version = "0.4.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
+checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
 dependencies = [
  "cfg-if",
 ]
@@ -455,6 +461,7 @@ dependencies = [
  "crossterm",
  "dns_common",
  "dns_common_derive",
+ "dunce",
  "edit",
  "etcetera",
  "lazy_static",
diff --git a/Cargo.toml b/Cargo.toml
index a9dc3d1..fa054cc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -37,6 +37,9 @@ dns_common_derive = { version = "0.2.1" }
 dns_common = { version = "0.2.1", default-features = false, features = ["yaml", "json"] }
 unicode-width = "0.1.10"
 
+[target.'cfg(windows)'.dependencies]
+dunce = "1"
+
 [lib]
 name = "navi"
 path = "src/lib.rs"
diff --git a/docs/config_file.md b/docs/config_file.md
index d7db573..25498c0 100644
--- a/docs/config_file.md
+++ b/docs/config_file.md
@@ -29,3 +29,9 @@ Run the following command to generate a config file with the default parameters:
 ```sh
 navi info config-example > "$(navi info config-path)"
 ```
+
+### Logging
+
+The log file will be created under the same directory where the config locates.
+
+And you can use the `RUST_LOG` env to set the log level, e.g. `RUST_LOG=debug navi`.
diff --git a/docs/config_file_example.yaml b/docs/config_file_example.yaml
index 2344dec..1eb7ab7 100644
--- a/docs/config_file_example.yaml
+++ b/docs/config_file_example.yaml
@@ -19,14 +19,17 @@ finder:
   # overrides_var: --tac # equivalent to the --fzf-overrides-var option
 
 # cheats:
-# paths:
-# - /path/to/some/dir
-# - /path/to/another/dir
+#   paths:
+#     - /path/to/some/dir # on unix-like os
+#     - F:\\path\\to\\dir # on Windows
 # path: /path/to/some/dir # (DEPRECATED) equivalent to the --path option
 
 # search:
 # tags: git,!checkout # equivalent to the --tag-rules option
 
 shell:
-  command: bash # shell used for shell out. possible values: bash, zsh, dash, ...
+  # Shell used for shell out. Possible values: bash, zsh, dash, ...
+  # For Windows, use `cmd.exe` instead.
+  command: bash
+  
   # finder_command: bash # similar, but for fzf's internals
diff --git a/src/bin/main.rs b/src/bin/main.rs
index ad67e71..8c4856a 100644
--- a/src/bin/main.rs
+++ b/src/bin/main.rs
@@ -1,6 +1,6 @@
 extern crate navi;
 
-use std::fmt::Debug;
+use dns_common::prelude::*;
 use thiserror::Error;
 
 #[derive(Error, Debug)]
@@ -24,6 +24,36 @@ impl FileAnIssue {
     }
 }
 
-fn main() -> Result<(), anyhow::Error> {
-    navi::handle().map_err(|e| FileAnIssue::new(e).into())
+fn main() -> anyhow::Result<()> {
+    if let Err(err) = init_logger() {
+        // may need redir stderr to a file to show this log initialization error
+        eprintln!("failed to initialize logging: {err:?}");
+    }
+    navi::handle().map_err(|e| {
+        error!("{e:?}");
+        FileAnIssue::new(e).into()
+    })
+}
+
+fn init_logger() -> anyhow::Result<()> {
+    const FILE_NAME: &str = "navi.log";
+    let mut file = navi::default_config_pathbuf()?;
+    file.set_file_name(FILE_NAME);
+
+    // If config path doesn't exist, navi won't log.
+    if file.parent().map(|p| !p.exists()).unwrap_or(true) {
+        return Ok(());
+    }
+
+    let writer = std::fs::File::create(&file).with_context(|| format!("{file:?} is not created"))?;
+    tracing::subscriber::set_global_default(
+        tracing_subscriber::fmt()
+            .with_ansi(false)
+            .with_writer(writer)
+            .with_env_filter(tracing_subscriber::EnvFilter::from_default_env())
+            .finish(),
+    )?;
+    debug!("tracing initialized");
+
+    Ok(())
 }
diff --git a/src/commands/core/actor.rs b/src/commands/core/actor.rs
index 9d49717..91a1846 100644
--- a/src/commands/core/actor.rs
+++ b/src/commands/core/actor.rs
@@ -41,9 +41,10 @@ fn prompt_finder(
             }
         }
 
-        let child = shell::out()
-            .stdout(Stdio::piped())
-            .arg(suggestion_command)
+        let mut cmd = shell::out();
+        cmd.stdout(Stdio::piped()).arg(suggestion_command);
+        debug!(cmd = ?cmd);
+        let child = cmd
             .spawn()
             .map_err(|e| ShellSpawnError::new(suggestion_command, e))?;
 
@@ -236,9 +237,10 @@ pub fn act(
                 clipboard::copy(interpolated_snippet)?;
             }
             _ => {
-                shell::out()
-                    .arg(&interpolated_snippet[..])
-                    .spawn()
+                let mut cmd = shell::out();
+                cmd.arg(&interpolated_snippet[..]);
+                debug!(cmd = ?cmd);
+                cmd.spawn()
                     .map_err(|e| ShellSpawnError::new(&interpolated_snippet[..], e))?
                     .wait()
                     .context("bash was not running")?;
diff --git a/src/commands/core/mod.rs b/src/commands/core/mod.rs
index ded24f1..00e3a35 100644
--- a/src/commands/core/mod.rs
+++ b/src/commands/core/mod.rs
@@ -13,6 +13,7 @@ use crate::welcome;
 pub fn init(fetcher: Box<dyn Fetcher>) -> Result<()> {
     let config = &CONFIG;
     let opts = FinderOpts::snippet_default();
+    debug!("opts = {opts:#?}");
     // let fetcher = config.fetcher();
 
     let (raw_selection, (variables, files)) = config
@@ -32,6 +33,7 @@ pub fn init(fetcher: Box<dyn Fetcher>) -> Result<()> {
         })
         .context("Failed getting selection and variables from finder")?;
 
+    debug!(raw_selection = ?raw_selection);
     let extractions = deser::terminal::read(&raw_selection, config.best_match());
 
     if extractions.is_err() {
@@ -44,7 +46,9 @@ pub fn init(fetcher: Box<dyn Fetcher>) -> Result<()> {
 }
 
 pub fn get_fetcher() -> Result<Box<dyn Fetcher>> {
-    match CONFIG.source() {
+    let source = CONFIG.source();
+    debug!(source = ?source);
+    match source {
         Source::Cheats(query) => {
             let lines = cheatsh::call(&query)?;
             let fetcher = Box::new(StaticFetcher::new(lines));
diff --git a/src/commands/mod.rs b/src/commands/mod.rs
index 783cbad..4537177 100644
--- a/src/commands/mod.rs
+++ b/src/commands/mod.rs
@@ -12,6 +12,7 @@ use crate::prelude::*;
 pub fn handle() -> Result<()> {
     use crate::config::Command::*;
 
+    debug!("CONFIG = {:#?}", &*CONFIG);
     match CONFIG.cmd() {
         None => commands::core::main(),
 
diff --git a/src/commands/preview/var_stdin.rs b/src/commands/preview/var_stdin.rs
index 4b8ddfb..78cc8ef 100755
--- a/src/commands/preview/var_stdin.rs
+++ b/src/commands/preview/var_stdin.rs
@@ -30,11 +30,10 @@ impl Runnable for Input {
             if !extra.is_empty() {
                 print!("");
 
-                shell::out()
-                    .arg(extra)
-                    .spawn()
-                    .map_err(|e| ShellSpawnError::new(extra, e))?
-                    .wait()?;
+                let mut cmd = shell::out();
+                cmd.arg(extra);
+                debug!(?cmd);
+                cmd.spawn().map_err(|e| ShellSpawnError::new(extra, e))?.wait()?;
             }
         }
 
diff --git a/src/common/fs.rs b/src/common/fs.rs
index 32c8b1e..cf8a737 100644
--- a/src/common/fs.rs
+++ b/src/common/fs.rs
@@ -78,6 +78,11 @@ fn follow_symlink(pathbuf: PathBuf) -> Result<PathBuf> {
 
 fn exe_pathbuf() -> Result<PathBuf> {
     let pathbuf = std::env::current_exe().context("Unable to acquire executable's path")?;
+
+    #[cfg(target_family = "windows")]
+    let pathbuf = dunce::canonicalize(pathbuf)?;
+
+    debug!(current_exe = ?pathbuf);
     follow_symlink(pathbuf)
 }
 
diff --git a/src/config/cli.rs b/src/config/cli.rs
index 7e2ec20..c6f86f9 100644
--- a/src/config/cli.rs
+++ b/src/config/cli.rs
@@ -117,6 +117,7 @@ pub enum Command {
     Info(commands::info::Input),
 }
 
+#[derive(Debug)]
 pub enum Source {
     Filesystem(Option<String>),
     Tldr(String),
diff --git a/src/config/env.rs b/src/config/env.rs
index 7afd27e..ba428fc 100644
--- a/src/config/env.rs
+++ b/src/config/env.rs
@@ -2,6 +2,7 @@ use crate::env_var;
 use crate::finder::FinderChoice;
 use crate::prelude::*;
 
+#[derive(Debug)]
 pub struct EnvConfig {
     pub config_yaml: Option<String>,
     pub config_path: Option<String>,
diff --git a/src/config/mod.rs b/src/config/mod.rs
index 774f930..b652608 100644
--- a/src/config/mod.rs
+++ b/src/config/mod.rs
@@ -12,6 +12,7 @@ use yaml::YamlConfig;
 lazy_static! {
     pub static ref CONFIG: Config = Config::new();
 }
+#[derive(Debug)]
 pub struct Config {
     yaml: YamlConfig,
     clap: ClapConfig,
@@ -69,7 +70,7 @@ impl Config {
                 if p.is_empty() {
                     None
                 } else {
-                    Some(p.join(":"))
+                    Some(p.join(crate::filesystem::JOIN_SEPARATOR))
                 }
             })
             .or_else(|| self.yaml.cheats.path.clone())
diff --git a/src/config/yaml.rs b/src/config/yaml.rs
index 8c4a693..70a5a17 100644
--- a/src/config/yaml.rs
+++ b/src/config/yaml.rs
@@ -6,7 +6,7 @@ use crate::prelude::*;
 use crossterm::style::Color as TerminalColor;
 use serde::de;
 
-#[derive(Deserialize)]
+#[derive(Deserialize, Debug)]
 pub struct Color(#[serde(deserialize_with = "color_deserialize")] TerminalColor);
 
 impl Color {
@@ -24,7 +24,7 @@ where
         .map_err(|_| de::Error::custom(format!("Failed to deserialize color: {s}")))
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, Debug)]
 #[serde(default)]
 pub struct ColorWidth {
     pub color: Color,
@@ -32,7 +32,7 @@ pub struct ColorWidth {
     pub min_width: u16,
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, Debug)]
 #[serde(default)]
 pub struct Style {
     pub tag: ColorWidth,
@@ -40,7 +40,7 @@ pub struct Style {
     pub snippet: ColorWidth,
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, Debug)]
 #[serde(default)]
 pub struct Finder {
     #[serde(deserialize_with = "finder_deserialize")]
@@ -58,27 +58,27 @@ where
         .map_err(|_| de::Error::custom(format!("Failed to deserialize finder: {s}")))
 }
 
-#[derive(Deserialize, Default)]
+#[derive(Deserialize, Default, Debug)]
 #[serde(default)]
 pub struct Cheats {
     pub path: Option<String>,
     pub paths: Vec<String>,
 }
 
-#[derive(Deserialize, Default)]
+#[derive(Deserialize, Default, Debug)]
 #[serde(default)]
 pub struct Search {
     pub tags: Option<String>,
 }
 
-#[derive(Deserialize)]
+#[derive(Deserialize, Debug)]
 #[serde(default)]
 pub struct Shell {
     pub command: String,
     pub finder_command: Option<String>,
 }
 
-#[derive(Deserialize, Default)]
+#[derive(Deserialize, Default, Debug)]
 #[serde(default)]
 pub struct YamlConfig {
     pub style: Style,
diff --git a/src/filesystem.rs b/src/filesystem.rs
index 6340f82..b8c4a03 100644
--- a/src/filesystem.rs
+++ b/src/filesystem.rs
@@ -12,6 +12,13 @@ use std::path::MAIN_SEPARATOR;
 
 use walkdir::WalkDir;
 
+/// Multiple paths are joint by a platform-specific separator.
+/// FIXME: it's actually incorrect to assume a path doesn't containing this separator
+#[cfg(target_family = "windows")]
+pub const JOIN_SEPARATOR: &str = ";";
+#[cfg(not(target_family = "windows"))]
+pub const JOIN_SEPARATOR: &str = ":";
+
 pub fn all_cheat_files(path: &Path) -> Vec<String> {
     WalkDir::new(path)
         .follow_links(true)
@@ -23,7 +30,7 @@ pub fn all_cheat_files(path: &Path) -> Vec<String> {
 }
 
 fn paths_from_path_param(env_var: &str) -> impl Iterator<Item = &str> {
-    env_var.split(':').filter(|folder| folder != &"")
+    env_var.split(JOIN_SEPARATOR).filter(|folder| folder != &"")
 }
 
 fn compiled_default_path(path: Option<&str>) -> Option<PathBuf> {
@@ -125,6 +132,7 @@ fn interpolate_paths(paths: String) -> String {
     newtext
 }
 
+#[derive(Debug)]
 pub struct Fetcher {
     path: Option<String>,
     files: RefCell<Vec<String>>,
@@ -165,7 +173,9 @@ impl fetcher::Fetcher for Fetcher {
                 None => folder.to_string(),
             };
             let folder_pathbuf = PathBuf::from(interpolated_folder);
-            for file in all_cheat_files(&folder_pathbuf) {
+            let cheat_files = all_cheat_files(&folder_pathbuf);
+            debug!("read cheat files in `{folder_pathbuf:?}`: {cheat_files:#?}");
+            for file in cheat_files {
                 self.files.borrow_mut().push(file.clone());
                 let index = self.files.borrow().len() - 1;
                 let read_file_result = {
@@ -180,6 +190,7 @@ impl fetcher::Fetcher for Fetcher {
             }
         }
 
+        debug!("FilesystemFetcher = {self:#?}");
         Ok(found_something)
     }
 
@@ -280,4 +291,12 @@ mod tests {
 
         assert_eq!(expected, cheats.to_string_lossy().to_string())
     }
+
+    #[test]
+    #[cfg(target_family = "windows")]
+    fn multiple_paths() {
+        let p = r#"C:\Users\Administrator\AppData\Roaming\navi\config.yaml"#;
+        let paths = &[p; 2].join(JOIN_SEPARATOR);
+        assert_eq!(paths_from_path_param(paths).collect::<Vec<_>>(), [p; 2]);
+    }
 }
diff --git a/src/finder/mod.rs b/src/finder/mod.rs
index b18888f..9b4ccfd 100644
--- a/src/finder/mod.rs
+++ b/src/finder/mod.rs
@@ -152,11 +152,13 @@ impl FinderChoice {
                 });
         }
 
-        let child = command
+        command
             .env("SHELL", CONFIG.finder_shell())
             .stdin(Stdio::piped())
-            .stdout(Stdio::piped())
-            .spawn();
+            .stdout(Stdio::piped());
+        debug!(cmd = ?command);
+
+        let child = command.spawn();
 
         let mut child = match child {
             Ok(x) => x,
diff --git a/src/lib.rs b/src/lib.rs
index cbae52d..bc2bdf6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,7 +1,5 @@
 #[macro_use]
 extern crate lazy_static;
-// #[macro_use]
-// extern crate anyhow;
 
 mod clients;
 mod commands;
@@ -16,4 +14,4 @@ mod prelude;
 mod structures;
 mod welcome;
 
-pub use commands::handle;
+pub use {commands::handle, filesystem::default_config_pathbuf};