diff --git a/Cargo.lock b/Cargo.lock
index ddda22b96e5d..48ddb4d9ef14 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1155,6 +1155,15 @@ name = "fs-err"
 version = "2.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "88a41f105fe1d5b6b34b2055e3dc59bb79b46b48b2040b9e6c7b4b5de097aa41"
+dependencies = [
+ "autocfg",
+]
+
+[[package]]
+name = "fs-err"
+version = "3.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8bb60e7409f34ef959985bc9d9c5ee8f5db24ee46ed9775850548021710f807f"
 dependencies = [
  "autocfg",
  "tokio",
@@ -4108,7 +4117,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "382e025ef8e0db646343dd2cf56af9d7fe6f5eabce5f388f8e5ec7234f555a0f"
 dependencies = [
  "anyhow",
- "fs-err",
+ "fs-err 2.11.0",
  "itertools 0.13.0",
  "once_cell",
  "rustc-hash",
@@ -4401,7 +4410,7 @@ dependencies = [
  "etcetera",
  "filetime",
  "flate2",
- "fs-err",
+ "fs-err 3.0.0",
  "futures",
  "http",
  "ignore",
@@ -4539,7 +4548,7 @@ version = "0.1.0"
 dependencies = [
  "csv",
  "flate2",
- "fs-err",
+ "fs-err 3.0.0",
  "globset",
  "indoc",
  "insta",
@@ -4571,7 +4580,7 @@ version = "0.0.1"
 dependencies = [
  "anstream",
  "anyhow",
- "fs-err",
+ "fs-err 3.0.0",
  "indoc",
  "insta",
  "itertools 0.13.0",
@@ -4603,7 +4612,7 @@ name = "uv-cache"
 version = "0.0.1"
 dependencies = [
  "clap",
- "fs-err",
+ "fs-err 3.0.0",
  "nanoid",
  "rmp-serde",
  "rustc-hash",
@@ -4626,7 +4635,7 @@ dependencies = [
 name = "uv-cache-info"
 version = "0.0.1"
 dependencies = [
- "fs-err",
+ "fs-err 3.0.0",
  "globwalk",
  "schemars",
  "serde",
@@ -4652,7 +4661,7 @@ dependencies = [
  "anyhow",
  "clap",
  "clap_complete_command",
- "fs-err",
+ "fs-err 3.0.0",
  "insta",
  "serde",
  "url",
@@ -4680,7 +4689,7 @@ dependencies = [
  "async_http_range_reader",
  "async_zip",
  "bytecheck",
- "fs-err",
+ "fs-err 3.0.0",
  "futures",
  "html-escape",
  "http",
@@ -4730,7 +4739,7 @@ dependencies = [
  "anyhow",
  "clap",
  "either",
- "fs-err",
+ "fs-err 3.0.0",
  "rustc-hash",
  "schemars",
  "serde",
@@ -4766,7 +4775,7 @@ dependencies = [
  "anstream",
  "anyhow",
  "clap",
- "fs-err",
+ "fs-err 3.0.0",
  "itertools 0.13.0",
  "markdown",
  "owo-colors",
@@ -4838,7 +4847,7 @@ version = "0.0.1"
 dependencies = [
  "anyhow",
  "either",
- "fs-err",
+ "fs-err 3.0.0",
  "futures",
  "indoc",
  "insta",
@@ -4898,7 +4907,7 @@ version = "0.0.1"
 dependencies = [
  "anyhow",
  "bitflags 2.6.0",
- "fs-err",
+ "fs-err 3.0.0",
  "itertools 0.13.0",
  "jiff",
  "petgraph",
@@ -4931,7 +4940,7 @@ version = "0.0.1"
 dependencies = [
  "async-compression",
  "async_zip",
- "fs-err",
+ "fs-err 3.0.0",
  "futures",
  "krata-tokio-tar",
  "md-5",
@@ -4958,7 +4967,7 @@ dependencies = [
  "dunce",
  "either",
  "encoding_rs_io",
- "fs-err",
+ "fs-err 3.0.0",
  "fs2",
  "junction",
  "path-slash",
@@ -4979,7 +4988,7 @@ dependencies = [
  "anyhow",
  "cargo-util",
  "dashmap",
- "fs-err",
+ "fs-err 3.0.0",
  "reqwest",
  "reqwest-middleware",
  "serde",
@@ -4998,7 +5007,7 @@ dependencies = [
 name = "uv-globfilter"
 version = "0.1.0"
 dependencies = [
- "fs-err",
+ "fs-err 2.11.0",
  "globset",
  "insta",
  "regex",
@@ -5019,7 +5028,7 @@ dependencies = [
  "configparser",
  "csv",
  "data-encoding",
- "fs-err",
+ "fs-err 3.0.0",
  "indoc",
  "mailparse",
  "pathdiff",
@@ -5056,7 +5065,7 @@ version = "0.0.1"
 dependencies = [
  "anyhow",
  "async-channel",
- "fs-err",
+ "fs-err 3.0.0",
  "futures",
  "rayon",
  "rustc-hash",
@@ -5101,7 +5110,7 @@ name = "uv-metadata"
 version = "0.1.0"
 dependencies = [
  "async_zip",
- "fs-err",
+ "fs-err 3.0.0",
  "futures",
  "thiserror 2.0.3",
  "tokio",
@@ -5206,7 +5215,7 @@ version = "0.1.0"
 dependencies = [
  "async-compression",
  "base64 0.22.1",
- "fs-err",
+ "fs-err 3.0.0",
  "futures",
  "glob",
  "insta",
@@ -5272,7 +5281,7 @@ dependencies = [
  "assert_fs",
  "clap",
  "configparser",
- "fs-err",
+ "fs-err 3.0.0",
  "futures",
  "goblin",
  "indoc",
@@ -5326,7 +5335,7 @@ dependencies = [
  "anyhow",
  "configparser",
  "console",
- "fs-err",
+ "fs-err 3.0.0",
  "futures",
  "rustc-hash",
  "serde",
@@ -5359,7 +5368,7 @@ version = "0.0.1"
 dependencies = [
  "anyhow",
  "assert_fs",
- "fs-err",
+ "fs-err 3.0.0",
  "indoc",
  "insta",
  "itertools 0.13.0",
@@ -5440,7 +5449,7 @@ dependencies = [
 name = "uv-scripts"
 version = "0.0.1"
 dependencies = [
- "fs-err",
+ "fs-err 3.0.0",
  "indoc",
  "memchr",
  "serde",
@@ -5461,7 +5470,7 @@ dependencies = [
  "assert_fs",
  "clap",
  "etcetera",
- "fs-err",
+ "fs-err 3.0.0",
  "indoc",
  "schemars",
  "serde",
@@ -5503,7 +5512,7 @@ dependencies = [
 name = "uv-state"
 version = "0.0.1"
 dependencies = [
- "fs-err",
+ "fs-err 3.0.0",
  "tempfile",
  "uv-dirs",
 ]
@@ -5519,7 +5528,7 @@ dependencies = [
 name = "uv-tool"
 version = "0.0.1"
 dependencies = [
- "fs-err",
+ "fs-err 3.0.0",
  "pathdiff",
  "serde",
  "thiserror 2.0.3",
@@ -5548,7 +5557,7 @@ dependencies = [
  "anyhow",
  "assert_cmd",
  "assert_fs",
- "fs-err",
+ "fs-err 3.0.0",
  "thiserror 2.0.3",
  "uv-fs",
  "which",
@@ -5583,7 +5592,7 @@ version = "0.5.2"
 name = "uv-virtualenv"
 version = "0.0.4"
 dependencies = [
- "fs-err",
+ "fs-err 3.0.0",
  "itertools 0.13.0",
  "pathdiff",
  "thiserror 2.0.3",
@@ -5611,7 +5620,7 @@ version = "0.0.1"
 dependencies = [
  "anyhow",
  "assert_fs",
- "fs-err",
+ "fs-err 3.0.0",
  "glob",
  "insta",
  "itertools 0.13.0",
@@ -5867,7 +5876,7 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf221c93e13a30d793f7645a0e7762c55d169dbb0a49671918a2319d289b10bb"
 dependencies = [
- "windows-sys 0.48.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index 3cd2a6c6113a..5fa3292b2dc0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -98,7 +98,7 @@ either = { version = "1.13.0" }
 encoding_rs_io = { version = "0.1.7" }
 etcetera = { version = "0.8.0" }
 flate2 = { version = "1.0.33", default-features = false }
-fs-err = { version = "2.11.0" }
+fs-err = { version = "3.0.0" }
 fs2 = { version = "0.4.3" }
 futures = { version = "0.3.30" }
 glob = { version = "0.3.1" }
diff --git a/crates/uv-build-backend/Cargo.toml b/crates/uv-build-backend/Cargo.toml
index b07524cb0bdd..2c1412e0af20 100644
--- a/crates/uv-build-backend/Cargo.toml
+++ b/crates/uv-build-backend/Cargo.toml
@@ -43,5 +43,5 @@ workspace = true
 
 [dev-dependencies]
 indoc = { version = "2.0.5" }
-insta = { version = "1.40.0" }
+insta = { version = "1.40.0", features = ["filters"] }
 tempfile = { version = "3.12.0" }
diff --git a/crates/uv-build-backend/src/metadata.rs b/crates/uv-build-backend/src/metadata.rs
index bfc20068abb0..18f72dad9abc 100644
--- a/crates/uv-build-backend/src/metadata.rs
+++ b/crates/uv-build-backend/src/metadata.rs
@@ -1022,8 +1022,15 @@ mod tests {
             .unwrap()
             .to_metadata(Path::new("/do/not/read"))
             .unwrap_err();
-        // Simplified for windows compatibility.
-        assert_snapshot!(err.to_string().replace('\\', "/"), @"failed to open file `/do/not/read/Readme.md`");
+        // Strip away OS specific part.
+        let err = err
+            .to_string()
+            .replace('\\', "/")
+            .split_once(':')
+            .unwrap()
+            .0
+            .to_string();
+        assert_snapshot!(err, @"failed to open file `/do/not/read/Readme.md`");
     }
 
     #[test]
diff --git a/crates/uv-requirements-txt/src/lib.rs b/crates/uv-requirements-txt/src/lib.rs
index 1983f2dadb62..c6027a84e8ec 100644
--- a/crates/uv-requirements-txt/src/lib.rs
+++ b/crates/uv-requirements-txt/src/lib.rs
@@ -1406,13 +1406,19 @@ mod test {
         let filters = vec![
             (requirement_txt.as_str(), "<REQUIREMENTS_TXT>"),
             (missing_txt.as_str(), "<MISSING_TXT>"),
+            // Windows translates error messages, for example i get:
+            // "Das System kann den angegebenen Pfad nicht finden. (os error 3)"
+            (
+                r": .* \(os error 2\)",
+                ": The system cannot find the path specified. (os error 2)",
+            ),
         ];
         insta::with_settings!({
             filters => filters,
         }, {
             insta::assert_snapshot!(errors, @r###"
             Error parsing included file in `<REQUIREMENTS_TXT>` at position 0
-            failed to read from file `<MISSING_TXT>`
+            failed to read from file `<MISSING_TXT>`: The system cannot find the path specified. (os error 2)
             "###);
         });
 
diff --git a/crates/uv-trampoline/Cargo.lock b/crates/uv-trampoline/Cargo.lock
index 5d9b574e39a1..e983d67056c8 100644
--- a/crates/uv-trampoline/Cargo.lock
+++ b/crates/uv-trampoline/Cargo.lock
@@ -187,9 +187,9 @@ dependencies = [
 
 [[package]]
 name = "fs-err"
-version = "2.11.0"
+version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88a41f105fe1d5b6b34b2055e3dc59bb79b46b48b2040b9e6c7b4b5de097aa41"
+checksum = "8bb60e7409f34ef959985bc9d9c5ee8f5db24ee46ed9775850548021710f807f"
 dependencies = [
  "autocfg",
 ]
diff --git a/crates/uv-trampoline/Cargo.toml b/crates/uv-trampoline/Cargo.toml
index 5713339d0d28..0016185091ae 100644
--- a/crates/uv-trampoline/Cargo.toml
+++ b/crates/uv-trampoline/Cargo.toml
@@ -56,7 +56,7 @@ embed-manifest = "1.4.0"
 anyhow = { version = "1.0.80" }
 assert_cmd = { version = "2.0.14" }
 assert_fs = { version = "1.1.1" }
-fs-err = { version = "2.11.0" }
+fs-err = { version = "3.0.0" }
 thiserror = { version = "2.0.0" }
 which = { version = "7.0.0" }
 zip = { version = "0.6.6", default-features = false, features = ["deflate"] }
diff --git a/crates/uv/tests/it/run.rs b/crates/uv/tests/it/run.rs
index b58d1e12c279..a391b2540869 100644
--- a/crates/uv/tests/it/run.rs
+++ b/crates/uv/tests/it/run.rs
@@ -2850,8 +2850,7 @@ fn run_script_explicit_directory() -> Result<()> {
     ----- stdout -----
 
     ----- stderr -----
-    error: failed to read from file `script`
-      Caused by: Is a directory (os error 21)
+    error: failed to read from file `script`: Is a directory (os error 21)
     "###);
 
     Ok(())
diff --git a/crates/uv/tests/it/venv.rs b/crates/uv/tests/it/venv.rs
index 7938d84a584d..cac2d79a2338 100644
--- a/crates/uv/tests/it/venv.rs
+++ b/crates/uv/tests/it/venv.rs
@@ -1067,10 +1067,10 @@ fn path_with_trailing_space_gives_proper_error() {
     let path_with_trailing_slash = format!("{} ", context.cache_dir.path().display());
     let mut filters = context.filters();
     // Windows translates error messages, for example i get:
-    // "Caused by: Das System kann den angegebenen Pfad nicht finden. (os error 3)"
+    // ": Das System kann den angegebenen Pfad nicht finden. (os error 3)"
     filters.push((
-        r"Caused by: .* \(os error 3\)",
-        "Caused by: The system cannot find the path specified. (os error 3)",
+        r"CACHEDIR.TAG`: .* \(os error 3\)",
+        "CACHEDIR.TAG`: The system cannot find the path specified. (os error 3)",
     ));
     uv_snapshot!(filters, std::process::Command::new(crate::common::get_bin())
         .arg("venv")
@@ -1080,8 +1080,7 @@ fn path_with_trailing_space_gives_proper_error() {
     ----- stdout -----
 
     ----- stderr -----
-    error: failed to open file `[CACHE_DIR]/ /CACHEDIR.TAG`
-      Caused by: The system cannot find the path specified. (os error 3)
+    error: failed to open file `[CACHE_DIR]/ /CACHEDIR.TAG`: The system cannot find the path specified. (os error 3)
     "###
     );
     // Note the extra trailing `/` in the snapshot is due to the filters, not the actual output.