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Cdwr code 41 - Acer PC Desktops


Answers :

1. Start > Run.
2. regedit
3. Navigate to HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Contro l\\Class in the Registry Editor dialog box and select the {4D36E965-E325-11CE-BFC1-08002BE10318} key, which appears as a folder.
4. Select File > Export
5. save the file to the Desktop in case you need to restore it
6. In the right panel of the Registry Editor, select the LowerFilters line, and then choose Edit > Delete. Click Yes in the Confirm Key Delete dialog box.
7. Do the same for the UpperFilters line
8. Close the Registry Editor.
9. Restart Windows.
Hi there,


To resolve this issue, edit the Windows\015\012registry to identify the CD-R drive or CD-RW drive as a recordable\015\012drive. To do this, follow these steps.

WARNING: If you use\015\012Registry Editor incorrectly, you may cause serious problems that may\015\012require you to reinstall your operating system. Microsoft cannot\015\012guarantee that you can solve problems that result from using Registry\015\012Editor incorrectly. Use Registry Editor at your own risk.

1. Click Start, and then click Run.
2. In the Open box, type regedit, and then click OK.
3. Expand the following registry subkey:
HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\CD Burning\\Drives
4. On the File menu, click Export.
5. In the File name box, type backup of drives key, and then click Save.

NOTE: You can restore this registry subkey by double-clicking the backup of drives key.reg file that you saved.
6.\015\012In the left pane of the Registry Editor window, click the Volume{GUID}\015\012folder under Drives, where GUID is a 32-character hexadecimal globally\015\012unique identifier.

NOTE: If you have more than one CD-ROM drive in the computer, an additional Volume{GUID} folder is listed for each drive.

7. In the right pane of the Registry Editor window, double-click Drive Type.
8. In the Value data box, type 1 or 2, depending on the drive type, and then click OK.

The drive type should be 1 if it is a CD-R and 2 if it is a CD-RW.
9. Quit Registry Editor.
10. Click Start, and then click My Computer.
11. Under Devices with Removable Storage, right-click the CD-R drive or CD-RW drive, and then
click Properties on the shortcut menu that appears.
12. If the Recording tab is displayed, the drive is successfully recognized by Windows as a recordable
device.
13. Click Cancel.

NOTE:\015\012If you have more than one CD-ROM drive, DVD-ROM drive, or CD-RW drive\015\012in the computer and the Recording tab is not displayed, an incorrect\015\012drive may have been configured as "recordable" in the Windows registry.\015\012To troubleshoot this issue, follow these steps:
1. Follow steps 1 through 9 to edit the Drive Type value of the Volume{GUID} folder whose
value you previously changed.
2. In the Value data box, type 3, and then click OK.

The drive type value of 3 indicates that the drive is a standard CD-ROM and is not writable.
3. In the left pane of the Registry Editor window, click the next Volume{GUID} folder.
4. Follow steps 7 through 8 to change the Value data entry to 1 or 2, depending on the drive type.
5. Quit Registry Editor, and then follow steps 10 through 12 to confirm that the Recording tab is
displayed in the properties dialog box of the CD-R drive or CD-RW drive.

XXXXXXXXXXXXXXXXXXXXXXXXXXXXX

SYMPTOMS
After\015\012you install Microsoft Windows XP, the CD-ROM drive, the DVD-ROM drive,\015\012or CD-ROM R/W drive may not be visible in the My Computer window.\015\012Additionally, there may be question marks on the devices that are\015\012listed under CD-ROM drives in Device Manager.
CAUSE
An incorrect device driver was installed for the CD-ROM device.
RESOLUTION
To resolve this behaviour, use the following methods in the order in which they are presented.
Method 1: Remove Registry Entry
WARNING:\015\012If you use Registry Editor incorrectly, you may cause serious problems\015\012that may require you to reinstall your operating system. Microsoft\015\012cannot guarantee that you can solve problems that result from using\015\012Registry Editor incorrectly. Use Registry Editor at your own risk.
1. Click Start, and then click Run.
2. In the Open box, type regedit, and then click OK.
3. Locate the following registry subkey:
HKEY_LOCAL_MACHINE/System/Curretcontrolset/Control/Class/{4d36e965-e325-11ce-bfc1-08002be10318}
4. On the File menu, click Export.
5. In the File name box, type savedkey, and then click Save.
6.\015\012Click the REG_MULTI_SZ data type UpperFilters, and then click Delete on\015\012the Edit menu. When you are prompted to confirm the deletion, click\015\012Yes. NOTE: If this data type is missing, continue to the next method.
7.\015\012Click the REG_MULTI_SZ data type LowerFilters, and then click Delete on\015\012the Edit menu. When you are prompted to confirm the deletion, click\015\012Yes.
8. Quit the Registry Editor, and then restart the computer.
Method 2: Replace Existing Driver
1. Click Start, and then click Control Panel.
2. If Control Panel is in Category view, click Performance and Maintenance, and then click System.

-or-

If Control Panel is in Classic view, double-click System.
3. On the Hardware tab, click Device Manager.
4. Click the drive with the question mark next to it.
5. On the Action menu, click Uninstall. When you are prompted to confirm the removal, click OK.
6. Repeat steps 4 through 5 for any other drives with question marks.
7. On the Action menu, click Scan for hardware changes.
NOTE:\015\012If Windows XP cannot locate the driver for your device, the device may\015\012not be supported by Windows XP. To see the list of supported devices,\015\012see the most recent Windows Hardware Compatibility List (HCL) at the\015\012following Microsoft Web site:

XXXXXXXXXXXXXXXXXXXXXXXXXXXXX

SYMPTOMS
After\015\012you remove either compact disc (CD) recording software or other\015\012software from your computer, your computer may exhibit the following\015\012behaviour:
• In My Computer, there is no access to your CD-ROMs.
•\015\012In Device Manager, the following error message appears in connection\015\012with any CD-ROM device that is part of your computer system:
The device is not working properly because Windows cannot load the drivers required for this device
(Code 31).
• Device Manager displays the following error message:
A driver for this device was not required, and has been disabled (Code 32 or Code 31).
You may also receive an error Code 39 message that indicates that the driver is corrupted.
• Device Manager displays the following error Code 19 message, which means that the registry returned some unknown result:
Your registry might be corrupted. (Code 19)
• You may also receive the following error message:
Windows successfully loaded the device driver for this hardware but cannot find the hardware device. (Code 41)
RESOLUTION
WARNING:\015\012If you use Registry Editor incorrectly, you may cause serious problems\015\012that may require you to reinstall your operating system. Microsoft\015\012cannot guarantee that you can solve problems that result from using\015\012Registry Editor incorrectly. Use Registry Editor at your own risk.

To resolve this behaviour, follow these steps:
1. Start Registry Editor (Regedt32.exe).
2. Locate the UpperFilters value under the following key in the registry:
HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Class\\{4D36E965-E325-11CE-BFC1-08002BE10318}
3. On the Edit menu, click Delete, and then click OK.
4. Locate the LowerFilters value under the same key in the registry:
HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Class\\{4D36E965-E325-11CE-BFC1-08002BE10318}
5. On the Edit menu, click Delete, and then click OK.
6.\015\012Quit Registry Editor. NOTE: After you remove the Upperfilters value and\015\012the Lowerfilters value, if you notice lost functionality in a\015\012particular program, such as CD recording software, you may need to\015\012reinstall that software. If the problem recurs, consult with the\015\012software vendor for assistance.
7. Restart your computer.
STATUS
This\015\012is a known issue that can occur when you remove Easy CD Creator version\015\0125.01 or earlier or DirectCD version 3.01c or earlier. This issue may\015\012also occur with Easy CD Creator version 5.01 and with DirectCD 3.01d or\015\012later.

MORE INFORMATION
There may be other third-party\015\012CD-writing software products that exhibit similar behaviour. Some or\015\012all of the troubleshooting steps in this article might apply if such a\015\012product also adds entries under the UpperFilters or LowerFilters value\015\012in the registry, either by adding its own filter drivers or by removing\015\012the registry keys and values outlined in this article that begin with:
HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Class\\{4D36E965-E325-11CE-BFC1-08002BE10318}

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