If you keep getting random blue screens with an asmtxhci.sys failed (stop code: SYSTEM SERVICE EXCEPTION) error lately, don’t panic. It’s often quite easy to fix…

2 fixes for asmtxhci.sys (SYSTEM SERVICE EXCEPTION)

  1. Update your ASMedia USB driver (nearly always fixes the issue)
  2. Reinstall your ASMedia USB driver

Fix 1: Update your ASMedia USB driver (nearly always fixes the issue)

This asmtxhci.sys bsod problem may occur if you are using the wrong ASMedia USB driver or it’s out of date. So you should update your ASMedia USB driver to see if it fixes your problem. If you don’t have the time, patience or skills to update the driver manually, you can do it automatically with Driver Easy. Driver Easy will automatically recognize your system and find the correct drivers for it. You don’t need to know exactly what system your computer is running, you don’t need to risk downloading and installing the wrong driver, and you don’t need to worry about making a mistake when installing. Driver Easy handles it all. You can update your drivers automatically with either the FREE or the Pro version of Driver Easy. But with the Pro version it takes just 2 clicks (and you get full support and a 30-day money back guarantee):
  1. Download and install Driver Easy.
  2. Run Driver Easy and click Scan Now. Driver Easy will then scan your computer and detect any problem drivers.

  3. Click Update All to automatically download and install the correct version of all the drivers that are missing or out of date on your system (this requires the Pro version – you’ll be prompted to upgrade when you click Update All).

    You can also click Update to do it for free if you like, but it’s partly manual.

  4. Restart your computer and check if the asmtxhci.sys blue screen of death issue has been resolved. If yes, then great! But if the problem still persists, move on to Fix 2, below.

Fix 2: Reinstall your ASMedia USB driver

It’s also possible that your current ASMedia USB driver is corrupted or in conflict with your computer system and triggers the asmtxhci.sys issue. So you can also try uninstalling the driver before reinstalling it to see if it fixes the problem. Here’s how:
  1. On your keyboard, press the Windows logo key  and R at the same time, then type devmgmt.msc and press Enter.

  2. Double-click on the Universal Serial Bus controllers category, right-click on your ASMedia USB driver and click Uninstall device.
  3. Click Yes to confirm the uninstall.
  4. Restart your computer.
  5. On your keyboard, press the Windows logo key and R at the same time, then type devmgmt.msc and press Enter.

  6. Click Action > Scan for hardware changes so that Windows can reinstall the driver for your PC.

  7. Check if the asmtxhci.sys blue screen of death issue has been fixed.

How have the methods above helped you with the troubleshooting? Do you have any ideas or tips to share with us? Drop a comment below and let us know your thoughts. 
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