On ASUS laptops, File Explorer slowness wears the same disguises as everywhere else: folders that take seconds to populate, right-clicks that freeze the window, the address bar’s green progress bar crawling. The ASUS twist is usually in the shell extensions — Armoury Crate, MyASUS, and bundled utilities love installing context-menu handlers — plus the occasional outdated storage driver. The diagnostic question remains: slow everywhere, in specific folders, or only on right-click?

Each answer points somewhere different: everywhere = shell extensions or system; specific folders = contents or location (network, thumbnails); right-click only = context-menu handlers. For the universal step-by-step see fixing slow File Explorer ; for the CPU-side variant see File Explorer high CPU troubleshooting .

Why this happens

  • ASUS utility shell extensions: Armoury Crate, MyASUS, and bundled tools adding context-menu handlers.
  • Quick Access dead pins: Pinned locations on disconnected drives stalling every open.
  • Third-party handlers hanging: Cloud apps, archivers, and utilities freezing right-click.
  • Indexing churn: Search indexer grinding through open folders.
  • Thumbnail stalls: Corrupt media blocking thumbnail generation.
  • Network timeouts: Dead mapped drives delaying navigation.
  • Antivirus per-file scanning: Real-time checks on every enumeration, worst in huge folders.

How to fix it

Work through these in order — diagnose first, then act.

Fix 1: Reset the Explorer starting point

Kill the Quick Access stall.

  1. Open Explorer > … > Options — set Open File Explorer to: to This PC.
  2. Under Privacy, click Clear (File Explorer history), and temporarily uncheck recent files/frequent folders.
  3. Unpin any Quick Access entries showing red X or grayed out — dead network/USB paths.
  4. Restart Explorer (Task Manager > Windows Explorer > Restart) and test folder opens.
  5. If speed is restored, the stall was Quick Access waiting on dead locations — re-enable the features you like, minus the dead pins.

Fix 2: Purge the shell extensions (including ASUS ones)

The highest-yield fix for ASUS machines.

  1. Run ShellExView (NirSoft, free) — sort by Company and look at non-Microsoft entries, including any from ASUS utilities.
  2. Disable all non-Microsoft shell extensions, restart Explorer, and test: folder opens, right-clicks, preview pane.
  3. If fixed, re-enable in small groups until slowness returns — the last group holds the offender.
  4. Common ASUS-adjacent offenders: utility context menus and “send to device” handlers from bundled software. Common general offenders: cloud-storage overlays, archivers, video tools.
  5. Leave the offender disabled, or update its parent app — and think twice before installing utilities that inject into Explorer.

Fix 3: Fix indexing and thumbnails

For slowness tied to specific folders.

  1. Indexing Options — if the index is rebuilding, wait it out; then Modify to exclude churn folders (Downloads, dev folders, game libraries).
  2. Advanced > Rebuild for a corrupt index — takes hours plugged in, but ends chronic slowness afterward.
  3. Disk Cleanup > check Thumbnails — clears the thumbnail cache; first open of media folders regenerates (slow once), then fast.
  4. If one file always stalls thumbnails, it’s corrupt — move it out and test; delete or repair the file.
  5. For giant media folders, use Details view instead of icons — no thumbnails, instant render. Toggle the preview pane off as a test too.

Fix 4: Cut network timeouts

Airplane-mode test tells all.

  1. Enable airplane mode (or unplug Ethernet) and test Explorer — sudden speed means network timeouts were the cause.
  2. In This PC, disconnect mapped drives with red X (right-click > Disconnect).
  3. Remove shortcuts to dead server/NAS paths from Quick Access and user folders.
  4. When mapping drives you need occasionally, uncheck Reconnect at sign-in — map on demand instead.
  5. VPN users: connect the VPN before browsing office shares, or keep those mappings disconnected when off-network.

Fix 5: Update ASUS storage and chipset drivers

The I/O layer matters for file browsing.

  1. Visit ASUS’s support site for your exact model — install the latest chipset and storage/IRST drivers; these govern how fast Explorer reads the drive.
  2. Update the BIOS if the changelog mentions storage, USB, or stability — Explorer stalls on external drives often trace to USB controller firmware.
  3. In Device Manager, clear any yellow-warning devices — broken drivers cause retry delays that surface as Explorer hangs.
  4. For external-drive slowness specifically, test the drive on another PC — a dying external HDD makes Explorer crawl regardless of laptop drivers.
  5. Keep Armoury Crate and MyASUS updated (Microsoft Store) — old versions’ background services occasionally interfere with shell operations.

Fix 6: Tune antivirus and Explorer settings

Reduce per-folder overhead.

  1. In Windows Security > Exclusions, add trusted high-file-count folders you browse constantly (project directories — never Downloads or system paths).
  2. Folder Options > View — uncheck Show sync provider notifications (OneDrive/Dropbox status chatter slows rendering).
  3. Folder Options > View > Reset Folders — clears corrupt saved views causing per-folder weirdness.
  4. Folder Options > General — set Open File Explorer to: This PC (from Fix 1) and uncheck Show recently used files in Quick access if still slow.
  5. Microsoft’s Windows support documents the official Explorer troubleshooting path as a complement.

Fix 7: Repair and escalate

When it’s system-wide and stubborn.

  1. sfc /scannow + DISM /Online /Cleanup-Image /RestoreHealth from an elevated terminal.
  2. Test in a new local user account — fast there means profile corruption; migrate.
  3. Test in Safe Mode — fast there means a driver or service; slow there means deep system issues.
  4. chkdsk C: /scan plus the SSD/HDD maker’s health tool — struggling storage slows every enumeration.
  5. Final: in-place Windows upgrade (ISO setup, keep files and apps) rebuilds Explorer cleanly.

Closing

Slow File Explorer on ASUS laptops is usually the shell-extension story with an ASUS cast: utility context menus plus the usual third-party handlers, dead Quick Access pins, or a churning indexer. Disable the handlers, clear the dead pins, fix the index — in that order — and folder browsing goes back to instant. Explorer was fast before everything hooked into it; unhooking is the fix.

Frequently asked questions

Why is File Explorer slow on ASUS laptops?
The causes are mostly universal: Quick Access waiting on dead network/USB locations, third-party shell extensions hanging, Windows Search indexing churning, thumbnail generation stalling, and antivirus scanning every file enumeration. ASUS-specific contributors include Armoury Crate and bundled utilities installing context-menu shell extensions, and outdated ASUS storage/chipset drivers slowing file I/O.
File Explorer freezes when I right-click — what's wrong?
Almost certainly a third-party shell extension (context-menu handler) hanging. When you right-click, Explorer loads every registered handler before showing the menu — one bad handler freezes the whole window. Disabling non-Microsoft shell extensions with ShellExView and re-enabling them in groups identifies the offender, usually a cloud app, archiver, or utility.
Does the preview pane slow down File Explorer?
It can, especially in folders with large media or documents. The preview pane generates a live preview of the selected file, which means loading handlers and rendering content on every selection change. If navigation feels laggy, toggle the preview pane off (View > Show > Preview pane) as a test — instant improvement implicates a preview handler.
Will reinstalling Windows fix slow File Explorer?
Usually, but it’s overkill as a first step. A reinstall clears shell extensions, corrupt caches, and broken index state — the same things the targeted fixes address individually in minutes. Reinstall only if Explorer is slow in a new user profile, Safe Mode, and after shell-extension cleanup, which indicates deep system corruption.