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[Win 10] USB ports and, after a new install, Touchpad stopped working

This is a discussion on [Win 10] USB ports and, after a new install, Touchpad stopped working within the Windows 10 Support forums, part of the Tech Support Forum category. I'm using a Lenovo Z51-70 Type 80k6. My touchpad stopped working properly a couple of days ago. I had a


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Old 11-20-2017, 07:40 AM   #1
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I'm using a Lenovo Z51-70 Type 80k6.

My touchpad stopped working properly a couple of days ago. I had a couple of blue screens too. Every time restarting fixed the problem.

Until two days ago It happened again. I did a restart and It fixed the problem, but my USB mouse stopped working.
I used it on another device to make sure it's not the issue and did a quick search to find out what's my options. I tried everything I found online and nothing worked. In the end I uninstalled pointing device drivers and restarted again. This time windows gave me an "Inaccessible Boot Device" Error and didn't let me get into it. I found out my USB ports have stopped working too.
I spent one day using every possible method but a clean install and, chkdsk didn't report any problems, troubleshooting options didn't work, even the reset failed. Since I couldn't format C to do a clean install, I installed an older version of win10 on another drive.

Now I could sign in my new user account, but again USB ports not working --- drivers didn't indicate any problems.
After a couple of restarts my touchpad stopped working -code 10 in device manager: "This device cannot start"- and I couldn't get it to work by reinstalling drivers and changing power options.

I can't risk losing any of my files, so I'm avoiding any kind of HD format.
Any help would be appreciated. Thanks.

PS: If I remember correctly Windows installed two major updates right before the second restart.
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Old 11-20-2017, 12:22 PM   #2
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You should always have a backup of the files you can't live without on an External HDD.
You can always do a System Restore to a time when the computer was working.
If you know exactly the day or the specific Update, you can go to Start/Search and type appwiz.cpl and press enter. In Programs and Features, on the left panel, click View Installed Updates. Browsing by Installed on Date you can right click the update and choose to Uninstall.
Also, in the Device Manager, any device with a Yellow Flag, you can Right click, choose Properties/Driver/Roll/Back Driver to the previous driver that was working.
As for your files, get an external HDD and open it go to C:\Users\[YourUserName] and drag/drop or copy/paste the user files (ie) Documents, Music, Pictures etc to the external HDD to create a Backup.
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