Question about Gateway MX6421 Notebook

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HELP! My laptop is REALLY slow...

After I removed the Upper Filters and Lower Filters registry values as my Cd/DVD player was not working on my Gateway Notebook MX6421. Now my computer freezes or it is REALLY slow...HELP ME PLEASE!!!

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  • Randall Stoots May 11, 2010

    exactly what are you doing ? it sounds like there are many viruses on that computer.... i recommend you do a complete re boot of the hard drive and do a destructive re format of the harddrive and then re install everything .....

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  • 148 Answers

Hi,
is the cd/dvd working now after removing upper and lower filters, if it is that is good,
when does your computer freeze can you associate it with some activity that you are doing on it,
does it give any error when it freezes any blue screen error

when you deleted upper and lower filters did the notebook started to freeze right after that or it worked fine for some time,

try restarting your system in safe mode and see if it freezes there
to go into safe mode
restart your system> at gateway logo > start tapping F8 > in this menu select safe mode and try using it in safe mode

tell me what happens so that i can help you further

Posted on Feb 18, 2009

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I took my cd player out now wont work


you might just need to reinstall the drivers

Click start control panel administration tools computer management device manager scroll down cd-dvd rom drives you might see a yellow question /exclamation mark ? ! or a red X right click to update driver You might have to physically unplug the leads for this cd/dvd computer then plug them back in restart your this should activate the found new hardware wizard. If this does not fix the problem it might be a registry problem "you only need to do the following" if you cant see your disk drive in windows explorer Close all open programs Click on Start, Run, and type regedit and press Enter Click on the plus signs (+) next to the following folders HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Control Class {4D36E965-E325-11CE-BFC1-08002BE10318} This folder is the DVD/CD-ROM Drive Class Description in the registry. Look for any of the following names in the right hand column. Upper Filters Lower Filters Upper Filters.bak Lower Filters.bak If any of the above keys shown in step 4 are listed, right-click on them and choose Delete

After deleting the keys, close the registry editor
Reboot your computer
Open My Computer and check to see if your CD or DVD drives have returned. You may also want to open Device Manager and verify that the yellow exclamation and error code on the CD or DVD drive is gone.

Feb 24, 2013 | HP Compaq Armada M700 Notebook

1 Answer

Iv tryed most things. my acer aspire 7520 laptop has lost the dvd/cd player from the device manager so it will not work it is connected and it starts up.but no picture or sound.


You need to reset the hi and lo filters for the device, as this is caused by a registry error or corruption
Close all open programs

Click on Start

Click Run

Type REGEDIT and press Enter

Vista doesn't come with the run command enabled so just type REGEDIT in the search bar above Start..

Click on the plus signs (+) next to the following folders to open them.

HKEY_LOCAL_MACHINE

SYSTEM

CurrentControlSet

Control

Class

{4D36E965-E325-11CE-BFC1-08002BE10318}
(looks like same file name for XP and Vista?)

This folder is the DVD/CD-ROM Drive Class Description in the registry. Look for any of the following names in the right hand column.

Upper Filters
Lower Filters
Upper Filters.bak
Lower Filters.bak

Jul 18, 2011 | Acer Aspire 7520-5757 Notebook

1 Answer

I cannot detect my DVD-Super Multi DL hardware


When did the problem start? if the DVD drive is not detected on the Computer but you have power on it. it might be a software related issue
You can try to remove the Upper and Lower Filters this normally fix Missing CD-Rom/DVD ROM issue:
*NOTE: MESSING UP THE REGISTRY MIGHT MESS UP YOUR SYSTEM. DO THIS AT YOUR OWN RISK - or you can see some links Below for other T/S Steps.
Clear the upper and lower registry filters

  1. Click the following Microsoft Fix it Solution to clean the registry filters automatically: c01733077.jpg If you cannot use the Microsoft Fix it Solution, continue using these steps to clear the upper and lower registry filters manually.
  2. Unplug all non-essential external plug and play devices, especially cameras.
  3. Click Start c00817930.gif , and type "regedit " into the Start Search field. The registry editor window appears.
  4. Select Computer in the main window.
  5. Click File , Export , type a filename that is easy for you to remember, and click Save . A copy of the registry has saved for back-up purposes to the Documents folder. If problems occur after using these steps, browse to the file and double-click it to restore the registry.
  6. Click the plus sign (+ ) next to the following items in the list:
    • HKEY_LOCAL_MACHINE
    • SYSTEM
    • CurrentControlSet
    • Control
    • Class
  7. Select 4D36E965-E325-11CE-BFC1-08002BE10318 . Make sure you have selected this exact key name.
  8. Select the LowerFilters value and press the Delete key. Confirm the deletion by clicking Yes . Figure 10: Registry Editor: LowerFilters key
  9. If an UpperFilters value is also listed, select UpperFilters in the right window and press the Delete key. Confirm the deletion by clicking Yes .
  10. Delete all other UpperFilter and LowerFilter values within the 4D36E965-E325-11CE-BFC1-08002BE10318 key if they exist.
  11. Close the registry editor and restart the computer. The disc drive should now be recognized by Windows. You may need to uninstall your disc recording software, restart the computer, reinstall the CD/DVD writing software, and then restart the computer again if the software no longer recognizes the drive (see next step).
or try this MISSING DVD ROM FIX

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1 Answer

Update SOSW-852S, my liteon cd riter dvd reader will not work, it will attempt to read a cd and eventually stop, please any suggestions


1.delete the upper and lower filter from registery
Click Start
RUN---TYPE REGEDIT
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
Caution There can be many instances of the registry subkey that is mentioned in step 2. You must make sure that you are in the appropriate registry subkey before modifying the UpperFilters and the
LowerFilters values. To verify that you are in the appropriate registry subkey, make sure that the Default data value is DVD/CD-ROM and the Class data value is CDROM.
In the right pane, if you have UpperFilters, right-click UpperFilters, and then click Delete.
Click Yes to confirm the removal of the UpperFilters registry entry.
In the right pane, if you have LowerFilters, right-click LowerFilters, and then click Delete.
Click Yes to confirm the removal of the LowerFilters registry entry.
Exit Registry Editor, and then restart the computer.
2.bootable disk also not working means suspected issue with dvd drive,So change the dvd driver.

Nov 16, 2010 | Acer PC Laptops

1 Answer

Cd/dvd stopped working checked my computer and the cd/dvd drive is not there


You may uninstall the Optical drive in the device manager and the remove upper and lower filters in the system registry.

Apr 24, 2010 | Toshiba Satellite A85-S107 Notebook

1 Answer

Hldtst dvdram gsat20n drivers missed, how to download


You do not need to download the driver. You just need to delete the filters in the registry, Here's how:
Click on start>Run>regedit to open the registry editor. Click ctrl+F to open the search window and try to search for 4D36E965-E325-11CE-BFC1-08002BE10318. if you cannot search it. click on HKEY localmachine>system>Current control set>control>class> then look for the value. the class should say CD/DVD rom drives. Delete the upper and lower filters. then restart your computer. That should get you going.

Solution 2:refer to this link
http://www.computerhilfen.com/tech/tip-dvd-player-has-disappeared.html

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2 Answers

My cd/dvd driver e is not listed in my lap top.


Are you able to see this in BIOS. Make sure it is detecting in system bios and its is not disabled over there

Oct 13, 2009 | Acer Aspire 5610-4648 Notebook

1 Answer

Laptop


I recently lost my CD/DVD drive when I (correctly) uninstalled a Roxio application from my Toshiba laptop. After a week of frustration, I finally found the fix. My CD/DVD drive is back!

Go to the Windows START menu.
Click on RUN and enter: regedit

FOLLOW THIS TREE:
Registry Key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class

In the CLASS folder, look for:
Key Name: {4D36E965-E325-11CE-BFC1-08002BE10318}


Value Data: [Delete All Value Data from UpperFilters and LowerFilters] You will see the upper and lower filters folders once you get to the end of the tree… *\*\*\control\class
If a backup folder for either the upper or lower filter folders shows up, clear all the data from these folders as well.

Note: Do not delete the Key or the Multi-String Values. Delete only the data values.
Exit Registry and Reboot


Nov 05, 2008 | Toshiba Satellite A100-S8111TD Notebook

1 Answer

Cannot find my E: Drive CD/DVD Player, just disappeared. HELP


this e:/ drive ur talking abt,is it ur cd/dvd drive? if it has disappered then u can try these steps. following them would clear the upper and lower filters from the windows registry which might not have updated it self with the vista updates so i really am sure that this would solve ur issue.
Step 1: Start Registry Editor loadTOCNode(3, 'resolution'); Click Start, click Run, type regedit, and then click OK. Registry Editor starts.
Step 2: Delete the UpperFilters registry entry loadTOCNode(3, 'resolution'); 1. In Registry Editor, expand My Computer, and then expand HKEY_LOCAL_MACHINE. 2. Expand SYSTEM, and then expand CurrentControlSet. 3. Expand Control, and then expand Class. 4. Under Class, click {4D36E965-E325-11CE-BFC1-08002BE10318}. 5. In the right pane (topic area), click UpperFilters.

Note An UpperFilters.bak registry entry may also appear. To delete the UpperFilters registry entry, you must click UpperFilters and not UpperFilters.bak. 6. On the Edit menu, click Delete. 7. When you receive the following message, click Yes to confirm the deletion of the UpperFilters registry entry: Are you sure you want to delete this value?The UpperFilters registry entry is removed from the {4D36E965-E325-11CE-BFC1-08002BE10318} registry subkey.

Note Do not exit Registry Editor. You must have this program for the next step.
Step 3: Delete the LowerFilters registry entry loadTOCNode(3, 'resolution'); 1. In Registry Editor, expand My Computer, and then expand HKEY_LOCAL_MACHINE. 2. Expand SYSTEM, and then expand CurrentControlSet. 3. Expand Control, and then expand Class. 4. Under Class, click {4D36E965-E325-11CE-BFC1-08002BE10318}. 5. In the right pane (topic area), click LowerFilters.

Note An LowerFilters.bak registry entry may also appear. To delete the LowerFilters registry entry, you must click LowerFilters and not LowerFilters.bak. 6. On the Edit menu, click Delete. 7. When you receive the following message, click Yes to confirm the deletion of the LowerFilters registry entry: Are you sure you want to delete this value?The LowerFilters registry entry is removed from the {4D36E965-E325-11CE-BFC1-08002BE10318} registry subkey. 8. Exit Registry Editor.
Step 4: Restart the computer loadTOCNode(3, 'resolution'); If a CD recording program no longer works after you restart the computer, you must reinstall the CD recording program. or u can try to burn the disc using the inbuilt burner program that cam in ur laptop

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5 Answers

Dvd drive wont work


That error and a number of other error codes can be reported for a DVD or CD writer if something has damaged one of the filter drivers, which are called Upper Filter and Lower Filter drivers in the Windows Registry. They can be installed by CD-writing software such as Roxio Easy CD, or by DVD players such as PowerDVD, or by programs such as Musicmatch Jukebox.
Microsoft describes the problem in MS Knowledge Base article 314060 - CD-ROM access is missing and messages cite error Code 31, Code 32, Code 19, or Code 39 after you remove Roxio Easy CD Creator in Windows XP at http://support.microsoft.com/?id=314060.
The article applies to Windows XP Home Edition and Windows XP Professional It implies that the problem is caused only by Roxio software, but the error can occur with any type of CD-writing or DVD software. Error messages that may occur when you try to access your CD or DVD drive include:
1. - Windows cannot start this hardware device because its configuration information (in the Registry) is incomplete or damaged. (Code 19)
2. - This device is not working properly because Windows cannot load the drivers required for this device. (Code 31)
3. - A driver (service) for this device has been disabled. An alternate driver may be providing this functionality. (Code 32)
4. - Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)
5. - Windows successfully loaded the device driver for this hardware but cannot find the hardware device. (Code 41)
However, there are other causes for these and similar messages. The solution provided below applies mainly to CD or DVD drives. For other explanations, read this MS Knowledge Base article - http://support.microsoft.com/?id=310123.
Uninstalling and then reinstalling CD-writing and DVD software may cure the problem, but in other cases, such as yours, the Windows Registry has to be edited in order to fix it. Making erroneous changes to the Registry can render a computer unbootable, so before you edit it, use Windows XP's System Restore to create a restore point that will allow you to restore it in Safe Mode, or export the keys from the Registry editor by using its File => Export feature. For more information, enter the word Registry in the Search box of Start => Help and Support.
Enter regedit in the Start => Run box to run the Registry Editor and click on the + signs to expand and highlight the following keys:
H_KEY _LOCALMACHINE => SYSTEM => CurrentControlSet => Control => Class => {4D36E965E325-11CE-BFC1-08002BE 1 0318}
There should be many keys called {4D36E965E325-11CE-BFC1-08002BE 1 0318}
If you want to export a copy of the values, select File => Export and enter a suitable filename, which will be saved as a .reg file that can be restored just by clicking on it. When you select a particular key, in the right window, for some of them, you should see keys called UpperFilters and LowerFilters. Select each such entry in turn, right-click with the mouse on it, and click Delete. After closing the Registry Editor, you should be able to use the CD/DVD drive again. However, you may have to reinstall software that accesses the drive, such as CD writers and DVD players.

Nov 10, 2007 | Toshiba Satellite A100-S8111TD Notebook

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