Increasing your paging file size changes how Windows manages storage associated with virtual memory. You can adjust the setting through advanced system settings, but treat a larger paging file as a troubleshooting option—not a replacement for finding the cause of memory pressure. [1][2][3]
The paging file is part of Windows’ virtual-memory setup, and Windows can manage its size automatically. [3] If you’re changing it because a game or another program has run into trouble, first consider what is using memory; a larger setting may be worth investigating, but it doesn’t explain why the problem happened. For example, if a game errors while several other apps are open, the paging-file setting is only one part of the picture.
You can reach the setting through advanced system settings. [1][3] The exact controls are best handled in the change process rather than guessed at: Windows has options for paging-file management, and the available guidance describes resizing through the advanced settings area. [2][3] Keep the goal modest—test a specific issue, then reassess—rather than treating a bigger number as a general performance fix. If the problem remains, look for its underlying cause instead of repeatedly increasing the setting.
When should you increase the paging file size?
A memory-limit error or a workload that runs short of available memory is a reason to investigate the paging file size, not an automatic reason to increase it. For example, if a game and several open applications trigger a low-memory warning, check whether memory use is actually near capacity before changing the setting. A larger pagefile can provide more room for virtual memory, but it does not add physical RAM or guarantee faster performance. [4]
Check what is using memory
Look at memory use while the problem occurs, rather than relying only on a warning that appeared once. If your game, browser, and voice chat are all open, note whether memory use rises as you switch between them; that can help you tell whether the workload is pressing against available memory.
If memory use is not close to its limit, do not assume that a larger pagefile will fix the slowdown or error. Treat the paging-file setting as one possibility to investigate, and consider which application or combination of tasks triggers the problem.
Check the drive before changing values
Check that the drive used for the paging file has available space before increasing its size. A larger pagefile uses more drive space, so leave enough room for Windows and the files you use. Windows recommends automatic management for most systems, so consider leaving the setting alone unless you have a specific memory-limit problem to troubleshoot. [3]
For example, if a warning appears only when you run a demanding game alongside several other applications, first check memory use and the available space on the relevant drive. If you cannot identify a memory-limit issue, avoid changing values just to see whether performance improves: a bigger pagefile is not a substitute for more RAM and does not promise smoother gameplay.
How to change the paging file size in Windows
Open Advanced system settings. In Windows search, type “View advanced system settings” and open the matching control-panel result; if your Windows version uses different menu labels, look for the system properties page and its Advanced tab. [1] This gets you to the controls for performance and virtual memory without having to hunt through unrelated settings.
In the System Properties window, open the Advanced tab and select Settings under Performance. In the Performance Options window, choose its Advanced tab, then select Change in the Virtual Memory area. [1] The labels and layout can vary by Windows version, so follow the equivalent Performance and Virtual Memory options if your screen looks different.
In the Virtual Memory window, find the drive that contains the paging file, select that drive, and choose Custom size. [2] For example, if the paging file is on your Windows drive, select that drive in the list before entering any values; do not assume the highlighted drive is the one you want.
Enter a higher value in Initial size and a higher value in Maximum size, then select Set and confirm the open dialogs with OK or Apply, depending on the labels shown. [2] Use the same units displayed beside the entry fields, and check each box carefully before committing the change. Windows may ask you to restart for the new settings to take effect; restart when prompted. [2]
If the controls are unavailable or named differently, pause rather than guessing. Reopen the system properties route and check the Advanced, Performance, and Virtual Memory areas; Windows versions can present these options differently. [1] Once you reach the custom-size fields, make the intended change and follow any restart prompt.
What to check before and after changing it
Before changing the paging file, record its current settings and check that the selected drive has room for the change. That gives you a clear baseline if you need to undo the adjustment, and it helps avoid choosing a drive that is already short on space. [2]
Before you edit
Write down the drive and the current Initial Size and Maximum Size values before replacing them. For example, note whether the paging file is on your Windows drive and keep a record of both displayed values; you can compare them with your new settings if you later troubleshoot or revert. [2]
Check the selected drive’s available space in File Explorer before applying larger values. If the drive is nearly full, pause and consider another suitable drive rather than setting a limit that the drive cannot accommodate. This is a practical check, not a reason to make the pagefile as large as possible.
If you are unsure what to set, Windows automatic management is a reasonable default for many users. You do not need to switch to custom values just because the controls are available. [3]
After you apply the change
Retry the same workload that triggered the problem, and watch for the original memory warning or failure. For a game, for example, repeat the same session or action that previously produced the warning, rather than judging the change from an unrelated task. If the issue does not recur, keep an eye on it during normal use.
If the warning or failure continues, do not keep raising the paging-file limit without checking what else is happening. Look at memory use while the workload runs, close applications you do not need, and consider whether another system constraint could be involved. A recurring problem is a cue to investigate, not proof that the paging-file setting alone is responsible.
Use the same test before and after the change so you can make a useful comparison. If the results are inconsistent, record what was running and when the warning appeared; that can help you spot whether a particular game, background app, or workload is associated with the problem.
Who may notice a difference?
The paging-file setting may be relevant when the applications you use approach the memory available to Windows, but it is not a general performance upgrade. For example, you might run a demanding game while keeping several browser tabs, a voice chat app, and a launcher open; that combination can put more pressure on memory than playing with those apps closed. [4]
If you are weighing a change, focus on the workload that triggers the problem. Try the game with your usual background apps open, then compare it with a session where you close the apps you do not need. That practical comparison can help you see whether the problem tracks with your overall workload, though it does not prove that the paging-file size is the cause.
Do not expect a larger paging file to raise frame rates. The example of a demanding game running alongside several browsers describes memory use, not a measured improvement from changing the setting. [4] If your game already runs smoothly and you are not hitting memory-related limits, there may be no visible difference to chase.
Also keep an open mind about symptoms such as stuttering, slow loading, or a game closing unexpectedly. A paging-file adjustment is only one possible avenue to investigate; check what else is running and whether the same issue appears under different conditions before settling on a cause. If the problem remains when you reduce background activity, look beyond this setting rather than increasing it repeatedly.
Windows recommends automatic paging-file management for most systems, so a custom size is not automatically the right choice for every player. [3] Treat it as a targeted troubleshooting option when your applications are pressing against available memory, not a routine tweak for every gaming PC.
The practical takeaway
The key takeaway is to make a custom paging-file change through Windows’ advanced settings, but first check what is causing memory pressure and whether the selected drive has room. If you decide to proceed, open the advanced system settings, go to Performance and Virtual Memory, select the drive, and choose the custom-size option. [1][2]
Before changing the values, look at what is using memory and how much free space is available on the drive that holds the paging file. For example, if a game is open alongside a browser and voice chat, close or check those applications to see whether one is consuming more memory than expected. This can help you decide whether changing the paging-file limit is the right next step.
Treat the change as one troubleshooting step, not a fix for every slowdown or memory warning. If the same problem returns, look again at memory use and other system constraints instead of continuing to raise the limit.
For a custom change, use the Initial Size and Maximum Size fields in the Virtual Memory controls, then apply your chosen values. [2] Windows automatic management is a reasonable default for many systems, so you do not need to change settings just because the option is available. [3] Start by checking the cause of the pressure and available drive space; then adjust the limit only if that check points you toward a paging-file change.