Crashes, No Sound, or Screen Glitches?
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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallIf Windows becomes slow or unstable after you use MemoryCleaner, first stop any automatic cleanup that may still be running. If the issue is only a changed MemoryCleaner preference, restore the app’s defaults if your installed version offers that control. If Windows itself is slow, crashing, or freezing, use Windows recovery tools—System Restore can roll back system files, settings, and installed programs to a restore point, but it does not reverse a completed RAM cleanup.
First identify what you need to undo
There are two different kinds of rollback. MemoryCleaner’s documented “restore defaults” control resets the utility’s preferences; it is not documented as reversing a memory cleanup that has already finished. Windows System Restore is a separate Windows feature for reverting system files, registry settings, and installed programs to a selected restore point.
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The developer’s version information differs by language page. Its Korean page lists version 3.0.0, dated 2026/09/29, and says that release added a button to restore all preferences to defaults. The English page lists version 2.0.3, dated 2026/09/03, and does not show that later release. Check the version installed on your PC and the current localized developer page before looking for the control; it may not be available in every build. MemoryCleaner version history in Korean · MemoryCleaner version history in English
If the problem appears limited to MemoryCleaner settings
- Open MemoryCleaner and check its installed version, settings, and whether automatic cleaning is enabled.
- Stop or disable automatic cleanup while troubleshooting, so it does not continue running.
- If your version has a restore-all-settings-to-defaults button, use it to reset the utility’s preferences.
MemoryCleaner’s English documentation describes manual and automatic cleaning and says the utility can clean working sets and standby memory. The available developer documentation does not explain how to reverse an individual completed cleanup, so resetting preferences should not be treated as restoring RAM contents or undoing a past cleanup.
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Use System Restore if Windows itself is behaving badly
If Windows still starts but is slow, crashing, freezing, or behaving unexpectedly, System Restore may help when a suitable restore point exists. Microsoft says it can revert system files, registry settings, and installed programs to the state at the selected point. It does not affect personal files, but it may affect apps, drivers, updates, and settings installed since that point. It is not a full backup and does not restore the memory contents that existed before a cleanup. See Microsoft’s System Restore guidance.
Start System Restore from Windows
- Open Control Panel > Recovery > Open System Restore. Alternatively, run
rstrui.exe. - Select a restore point from before the problem began, if one is available.
- Use the option to scan for affected programs, if offered, to review apps and drivers that may be changed.
- Confirm the restore and allow the PC to restart. Afterward, check whether Windows is stable and reinstall or update affected apps and drivers as needed.
Start System Restore when Windows will not start normally
- Enter the Windows Recovery Environment (WinRE). The route into WinRE depends on the device and situation; follow Microsoft’s recovery guidance for the available startup options.
- Choose Troubleshoot > Advanced options > System Restore.
- Select an appropriate restore point and follow the prompts. If the device is encrypted, have its BitLocker recovery key available; Microsoft says it may be required to complete System Restore.
For the current WinRE and other recovery routes, see Microsoft’s recovery options in Windows.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.When System Restore is not enough
Choose the least disruptive option that fits the problem. Microsoft lists options such as Reset this PC and reinstalling Windows, but these are more disruptive than System Restore. Their effects depend on the selected option and the prompts shown on your PC: Reset this PC offers different file-retention choices, while some recovery paths can remove data. Back up important personal files before proceeding whenever possible, and read each confirmation screen carefully. Microsoft’s recovery-options guide explains the available choices.
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A USB recovery drive is another recovery option, particularly when the PC cannot boot or other routes are unavailable. It does not contain personal files and does not directly undo MemoryCleaner changes, so keep a separate backup. Microsoft explains recovery media in its backup, restore, and recovery guidance.
If the PC is managed by work or school and built-in recovery options do not resolve the issue, Microsoft advises contacting your organization’s IT department.
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