Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: DVD Drive disappeared - Windows 7 64bit

05 Sep 2010   #11

windows 7

I have this exact same problem! I dunno wtf is going on!

My System SpecsSystem Spec
30 Dec 2010   #12

Windows 7 Ultimate x64
Dvd drive [acer tsst ts-l633b] disappears in windows 7 explorer

Check out my post [soulrebel]: Acer Aspire didnt detect DVD-RW driver on 7?

I had the same problem with an ACER TSST TS-L633B DVD+/-RW [SAMSUNG] which took me months to find the answer.

- Drive disappears in Windows Explorer;
- Drive reappears when tray opens or closes;
- Have to reboot computer to see drive.

This problem occurs because the SATA driver (Msahci.sys) implements new power management functionality that is known as Adaptive Link Power Management (ALPM). ALPM is a feature that puts a hardware device into sleep state after 100 ms of idle time. This is a power-saving feature. Some optical drives do not behave correctly with ALPM enabled, and therefore these drives may not be recognised by the computer. The following is a list of some DVD drive models that are known to exhibit this problem:


METHOD 1. Update the DVD firmware;
METHOD 2. Manually turn off ALPM.
My System SpecsSystem Spec

 DVD Drive disappeared - Windows 7 64bit

Thread Tools

Similar help and support threads
Thread Forum
Intl. hard drive has disappeared from Windows Explorer whilst in use
There I was, minding my own business, watching a film in my computer's e:\ drive when the film suddenly stopped so I thought, okay, perhaps some dust in the plug and/or socket so I shut it down, did the cleaning bit then fired it back up again. All was okay through the POST sequence but when I...
Hardware & Devices
Hard drive suddenly disappeared from Windows Explorer
About 3 weeks ago, my 3TB seagate drive suddenly 'disappeared' from Windows Explorer. I rebooted and it reappeared. Sometimes when I copied files over to the drive, my computer would suddenly freeze, forcing me to reset the computer. Today the 3TB seagate drive disappeared again. Rebooting...
Hardware & Devices
Secondary hard drive disappeared after install of Blu Ray DVD drive
Hello, I hope someone can help me with an issue I've just come across. I bought an LG BH14 Blu Ray DVD drive to replace my old LG drive. I unplugged my pc, pulled out the old unit, disconnected the two wires, connected them to my new unit, and popped it back in. Too easy, right? After...
Hardware & Devices
dvd drive disappeared after updating windows 7 ultimate x64
someone help my dvd drive disappeared after updates of windows 7 ultimate on my toshiba laptop satellite A205. in BIOS it is showning optical disk drive : NONE.:shock:. someone help is not even booting. i have googled for various options none is doing the trick
Hardware & Devices
2nd Hard drive disappeared after Windows Update
This morning I had a Windows 7 update waiting. I shut down to let it do the update and went to work. When I came home and started it back up it stayed hung-up on the startup screen for 15 minutes before I hard rebooted. When it came back up, the second drive disappeared from My Computer. I...
General Discussion

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 03:28.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App