Cryogenist Senior Member



Join Date: Jun 2005 Posts: 1,561

Awareness Thread on Windows 8 Memory Leak with NDU.sys



Just wanna share with you guys on this Memory Leak ONLY in Windows 8.

Not sure any of you heard of it or got it before.



I gotten it a few times and finally managed to resolve it.



Apparently this guy below

" Windows Network Data Usage Monitoring Driver " or NDU.sys was introduced in Windows 8.



Info:

Windows Network Data Usage Monitoring Driver - Windows 8 Service - batcmd.com



This guy is pretty naughty and causes memory leak.



It is being reported in a few places below:



Discussion Threads

Non-Paged Pool Leak in Network layer

Windows 8 high memory usage - Windows Discussion & Support - Neowin Forums

Damjan's playground: Windows 8 RTM Memory leak - NDU.SYS?



This screenshot is gotten from Damjan's website





Causes

The exact criteria to trigger is not confirmed 100% though.

Some were pointing at the Network Drivers.

Like what some say, is probably a VERY BADLY written network code by dear Microsoft.



This guy will cause the "Non-paged pool" to grow massively, SQUEEZING almost every last bit of your RAM and also causes your pagefile to be VERY active. Which in turn affects your HDD/SDD IO performance.



The result = causing your system to be slowed down to a crawl, irresponsive



Temporary Solution

Restart the computer.



Alternative (Permanent) Solution



Open up "regedit" and go this key.

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Ndu



Change the "Start" value to 4 (to disable it).





Thanks for reading. Hi guys.Just wanna share with you guys on thisin Windows 8.Not sure any of you heard of it or got it before.I gotten it a few times and finally managed to resolve it.Apparently this guy below" orwas introduced in Windows 8.This guy is pretty naughty and causes memory leak.It is being reported in a few places below:The exact criteria to trigger is not confirmed 100% though.Some were pointing at the Network Drivers.Like what some say, is probably awritten network code by dear Microsoft.This guy will cause the "Non-paged pool" to grow massively, SQUEEZING almost every last bit of your RAM and also causes your pagefile to be VERY active. Which in turn affects your HDD/SDD IO performance.The result = causing your system to be slowed down to a crawl, irresponsiveRestart the computer.Open up "regedit" and go this key.HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\NduChange the "Start" value to 4 (to disable it).Thanks for reading. E_T likes this.