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 Search this Thread
Search this Thread:

Advanced Search

Similar help and support threads
Thread Forum
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
second hard drive icon "D" disappeared after reinstalling windows
"C" drive is showing in my computer but the "D" drive is not showing anymore after reinstalling windows
General Discussion
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
Blu ray drive disappeared
I have an HTPC with blue ray (Windows 7 home premium 64 bit). It worked fine for a long time but now the blue ray drive is not showing anywhere. It still shows in BIOS but it doesn't show in windows explorer or device manager and "add new device doesn't find it". Can any one help? Thanks Bruce
Hardware & Devices
dvd drive disappeared!
Not quite sure what happened, but the other day, i turned off my computer for whatever reason, i dont remember, and when i turned it back on, my dvd-drive is "missing"! its a fairly old, pioneer a09xlc dvd-rw drive, and its getting power, but something with the sata cable, im assuming, is the...
Hardware & Devices

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 13:00.

Twitter Facebook Google+

Windows 7 Forums

Seven Forums Android App Seven Forums IOS App