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Main Forum => General Computer Support => Topic started by: makinero on July 02, 2016, 05:31:11 AM

Title: Win32k Desktop Heap Allocation Failed
Post by: makinero on July 02, 2016, 05:31:11 AM

Sometimes get the error message:
Quote
Win32k Desktop Heap Allocation Failed

What is the error?
Title: Re: Win32k Desktop Heap Allocation Failed
Post by: Boggin on July 02, 2016, 06:47:38 AM
https://support.software.dell.com/appassure/kb/132435

https://support.microsoft.com/en-gb/kb/184802

Courtesy of Google.
Title: Re: Win32k Desktop Heap Allocation Failed
Post by: makinero on July 02, 2016, 07:59:30 AM
Typically, that third number is smaller than the second, i.e. the interactive desktop heap is larger than the non-interactive desktop heap.
The solution is to modify that registry setting to increase the third number of the SharedSection parameter, i.e. increase the size of the non-interactive desktop heap.
For example, you could change this:
SharedSection=1024,20480,768(My setting)
to this:
SharedSection=1024,20480,4096
You must re-boot the server for the change to take effect.
Regarding the warning at the top of this document: if you make one of these 3 heap size settings too small, the server may not have enough resources to start.
Title: Re: Win32k Desktop Heap Allocation Failed
Post by: Boggin on July 02, 2016, 08:10:29 AM
Well try the suggestion.