The last 3 KB of the second page is unavailable to the caller or another caller. To avoid wasting nonpaged pool, the driver should allocate multiple pages efficiently.
Note Starting with Windows Vista, the system automatically adds the additional memory so two allocations are unnecessary. Drivers should always check the returned pointer. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. If you are looking for a more in-depth explanation, here is another article than can help.
Each game and program will have a different method for allocating more RAM, if it is even possible. Many applications are coded to use a specific amount of RAM based on your operating system, regardless of how much you have available.
For the most part, RAM is harmless. However, there are times when it can cause more serious damage. Anyone that has ever worked in coding has experienced a stack overflow error—a problem that happens when the call stack memory is exceeded.
This error results in a crash. This happens when it exceeds its allotted amount of RAM and can no longer operate properly. Waiting for the memory to clear can sometimes resolve the problem, but the go-to method is to force quit a program by using the Task Manager.
Patrick is an Atlanta-based technology writer with a background in programming and smart home technology. Read Patrick's Full Bio. We hate spam too, unsubscribe at any time. Table of Contents. Subscribe on YouTube! Did you enjoy this tip? We cover Windows, Mac, software and apps, and have a bunch of troubleshooting tips and how-to videos. However, the automatic fix also works for other language versions of Windows.
If you are not on the computer that has the problem, save the Fix it solution to a flash drive or a CD and then run it on the computer that has the problem. We increase the second value of the SharedSection registry entry to and increase the third value of the SharedSection registry entry to in the automatic fix. Then, go to the " Did this fix the problem? To resolve this problem, modify the desktop heap size. To do this, follow these steps:. Click Start , type regedit in the Start Search box, and then click regedit.
Note If you are prompted for an administrator password or for confirmation, type your password, or click Continue. Right-click the Windows entry, and then click Modify. In the Value data section of the Edit String dialog box, locate the SharedSection entry, and then increase the second value and the third value for this entry. The second value of the SharedSection registry entry is the size of the desktop heap for each desktop that is associated with an interactive window station. The heap is required for each desktop that is created in the interactive window station WinSta0.
The value is in kilobytes KB. The third SharedSection value is the size of the desktop heap for each desktop that is associated with a "non-interactive" window station. We do not recommend that you set a value that is over KB for the second SharedSection value. By default, the Windows registry entry contains the following data in an xbased version of Windows Vista. Note By default, the second value for the SharedSection entry is in an xbased version of Windows Vista.
By default, this second value for this entry is in an xbased version of Windows Vista. Windows Vista SP1, 7, 8, 8. Windows Vista, 7, 8, 8. In Windows Vista and in later operating systems, memory allocations are dynamic. Therefore, there is no limitation for memory allocation.
However, if you allocate too much memory to the desktop heap, negative performance may occur.
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