Shutting Down Capture PC Nightly

Written on Mar 9, 2017

Should the Capture PC be turned off nightly or just restarted?

Vatech recommends that the Capture PC* should be shut down nightly to avoid possible memory leaks, failed to save or other undesired failed operations due to the Windows environment leaking memory from being left on too long.

  • Vatech Recommends that you have your IT consultant setup automatic shutdowns each night to ensure the PC is shut down.
  • IF there is a local database on the Capture PC, Vatech recommends shutting down after the backup is finished each night*.
  • Automatic shutdowns can be accomplished via Windows task scheduler or other software based programs or the Power shell.

What is a Memory leak?

Source: Wikipedia*

In computer science, a memory leak is a type of resource leak that occurs when a computer program incorrectly manages memory allocations[1] in a way that memory which is no longer needed is not released. A memory leak may also happen when an object is stored in memory but cannot be accessed by the running code.[2] A memory leak has symptoms similar to a number of other problems and generally can only be diagnosed by a programmer with access to the program's source code.

A related concept is the "space leak", which is when a program consumes excessive memory but does eventually release it.[3]

Because they can exhaust available system memory as an application runs, memory leaks are often the cause of or a contributing factor to software aging.


A memory leak reduces the performance of the computer by reducing the amount of available memory. Eventually, in the worst case, too much of the available memory may become allocated and all or part of the system or device stops working correctly, the application fails, or the system slows down vastly due to thrashing.

Memory leaks may not be serious or even detectable by normal means. In modern operating systems, normal memory used by an application is released when the application terminates. This means that a memory leak in a program that only runs for a short time may not be noticed and is rarely serious.

Much more serious leaks include those:

< >where a program runs for a long time and consumes added memory over time, such as background tasks on servers, and especially in embedded systems which may be left running for many yearswhere new memory is allocated frequently for one-time tasks, such as when rendering the frames of a computer game or animated videowhere a program can request memory, such as shared memory, that is not released, even when the program terminateswhere memory is very limited, such as in an embedded system or portable device, or where the program requires a very large amount of memory to begin with, leaving little margin for leakswhere a leak occurs within the operating system or memory managerwhen a system device driver causes a leakrunning on an operating system that does not automatically release memory on program termination.Saving Problems.Capture Problems including dropped framesFailed to reconstruction / conversion to DICOMSoftware failing to run correctly, laggy or slow to respond.Various other Windows operational issues.

If you have or suspect any of these issues the best option is to first Restart/Shutdown your PC and allow adequate time for the PC to be 'OFF' as soon as possible. Normally restarting will allow a temporary elevation of the symptom like taking a 'power' nap and can offer a short-term solution. You should allow the PC to be off as soon as possible to release all memory as soon as possible.

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