0x00000001 APC_INDEX_MISMATCH fix error

This issue occurs because of an error in the Compositebus.sys driver or a mismatch in the APC status index.

The most common cause of this STOP error is an inconsistent sequence of disabling and re-enabling APC on the file system or driver. The key data element is the CombinedApcDisable field of the stream. The CombinedApcDisable field consists of two separate 16-bit fields: SpecialApcDisable and KernelApcDisable. The negative value of each field indicates that the driver has disabled special or regular APC (respectively), without further activation. A positive value indicates that the driver has included special or regular APC too many times.

Error Code Cause Drivers

tcpip.sys; ntoskrnl.exe; ndis.sys; raspppoe.sys; win32k.sys; psi.sys

How to fix Stop 0x00000001

     1. BSoD 0x00000001 appears in Windows Server 2008, Windows 7 and Windows 8 when installing third-party applications for MTP and WPD devices. Also at their first installation.

     This error code is due to the inconsistent state of the Compositebus.sys driver. When an MTP or MPD device is first connected to the computer, the composite bus enumerator detects them and attempts to install the driver for this device. During the installation process, a third-party application may issue a USB device reset command, which causes an error.

     To resolve the error, download and install the latest updates on your operating system.

      2. STOP 0x00000001 appears in Windows Vista due to the detection of an error in the system file Win32k.sys. The CombinedApcDisable field is 0x0000FFFF.

     Upgrading the operating system will eliminate this error.

Error Details

     APC_INDEX_MISMATCH - internal kernel error. It occurs at the completion of the system call. Error 0x00000001 occurs when the file system or driver has an inconsistent sequence of system calls to start or end a protected or critical section. For example, each KeEnterCriticalRegion call must have a corresponding KeLeaveCriticalRegion call.

     Error APC INDEX MISMATCH most often occurs when the KeEnterCricticalRegion and KeLeaveCriticalRegion tags do not match in the file system. KeEnterCricticalRegion temporarily disables the delivery of conventional kernel-mode APCs, while special kernel-mode APCs continue to be delivered. KeLeaveCriticalRegion enables delivery of standard kernel-mode APCs that were disabled by a KeEnterCricticalRegion call. A critical section can be run recursively, and each KeEnterCricticalRegion call must have a corresponding KeLeaveCriticalRegion call.

4 Recommendations for the Elimination of BSoD:

1. 0x00000001 APC_INDEX_MISMATCH may appear due to errors in the code of the operating system itself. Microsoft is constantly working to correct such errors, releasing patches and service packs. Installed the latest update package (Service pack) and the constant updating of the system will save a lot of errors.
2. If 0x00000001 APC_INDEX_MISMATCH appeared after the newly installed device driver or program. It is necessary to roll back the driver to an earlier version. With programs, things are easier, removing them will eliminate the cause of the failure. The “Run Last Known Good Configuration” option may be useful.
3. If 0x00000001 APC_INDEX_MISMATCH began to appear after you have connected a new device to the system, then you need to check it for compatibility with your operating system. If the device is compatible, then you need to download the latest drivers from the official website of the manufacturer and install them. If the latest drivers are installed, you need to install an earlier version of the drivers. If the device is incompatible with the operating system, then it is necessary either to change this device or to change the operating system that supports this device.
4. Very often the cause of the appearance of 0x00000001 APC_INDEX_MISMATCH is a malfunction of the RAM. To test it, you can use testing programs, such as memtest86+.