diff --git a/build-self-coverage.js b/build-self-coverage.js
index 91beff2f..59c40e42 100644
--- a/build-self-coverage.js
+++ b/build-self-coverage.js
@@ -23,7 +23,7 @@ function instrumentFile (name) {
 }
 
 async function instrumentGlob (pattern) {
-  const result = await glob(pattern)
+  const result = await glob(pattern, { windowsPathsNoEscape: true })
 
   result.forEach(file => {
     instrumentFile(file)
diff --git a/index.js b/index.js
index 32db0f8a..92b8422d 100755
--- a/index.js
+++ b/index.js
@@ -182,7 +182,7 @@ class NYC {
     this._loadAdditionalModules()
 
     this.fakeRequire = true
-    const files = await this.exclude.glob(this.cwd)
+    const files = await this.exclude.glob(this.cwd, { windowsPathsNoEscape: true })
     for (const relFile of files) {
       const filename = path.resolve(this.cwd, relFile)
       const ext = path.extname(filename)
@@ -236,14 +236,15 @@ class NYC {
     if (stats.isDirectory()) {
       inputDir = input
 
-      const filesToInstrument = await this.exclude.glob(input)
+      const filesToInstrument = await this.exclude.glob(input, { windowsPathsNoEscape: true })
 
       const concurrency = output ? os.cpus().length : 1
       if (this.config.completeCopy && output) {
         const files = await glob(path.resolve(input, '**'), {
           dot: true,
           nodir: true,
-          ignore: ['**/.git', '**/.git/**', path.join(output, '**')]
+          ignore: ['**/.git', '**/.git/**', path.join(output, '**')],
+          windowsPathsNoEscape: true
         })
         const destDirs = new Set(
           files.map(src => path.dirname(path.join(output, path.relative(input, src))))
diff --git a/npm-run-clean.js b/npm-run-clean.js
index ab77ce5c..8bfa1f9a 100644
--- a/npm-run-clean.js
+++ b/npm-run-clean.js
@@ -19,6 +19,6 @@ const patterns = [
 ]
 
 patterns.forEach(pattern => {
-  glob.globSync(pattern)
+  glob.globSync(pattern, { windowsPathsNoEscape: true })
     .forEach((f) => rimraf(f))
 })
diff --git a/test/helpers/reset-state.js b/test/helpers/reset-state.js
index 03aeb2a0..36fc9e3d 100644
--- a/test/helpers/reset-state.js
+++ b/test/helpers/reset-state.js
@@ -8,7 +8,7 @@ const rimraf = require('rimraf')
 
 module.exports = async function () {
   // nuke any temporary files created during test runs.
-  const files = await glob('test/**/*/{.nyc_output,.cache}')
+  const files = await glob('test/**/*/{.nyc_output,.cache}', { windowsPathsNoEscape: true })
   await Promise.all(files.map(f => rimraf(f)))
 
   // reset Node's require cache.
diff --git a/test/nyc-integration.js b/test/nyc-integration.js
index 214b6c78..cb9f2ae9 100644
--- a/test/nyc-integration.js
+++ b/test/nyc-integration.js
@@ -348,7 +348,7 @@ t.test('extracts coverage headers from unexecuted files', async t => {
     ]
   })
 
-  const files = await glob(path.join(t.tempDir, '*.json'))
+  const files = await glob(path.join(t.tempDir, '*.json'), { windowsPathsNoEscape: true })
   const coverage = []
   await Promise.all(files.map(async file => {
     const data = JSON.parse(await fs.readFile(file, 'utf-8'))