Registry Repair Options

The Registry Repair Options page repairs the Windows registry. Over time the registry accumulates entries pointing to programs that no longer exist. These entries slow Windows down and can cause errors. Each switch finds and removes a specific kind of invalid entry.

How it works

WinSysClean reads each registry entry, checks whether the file or folder it points to still exists, and removes the entry if the target is missing. Entries pointing to network drives, CD/DVD drives, or removable media are always skipped — WinSysClean does not assume those are broken just because the media is not inserted right now.

The switches

Switch	Repairs	Default
Invalid OLE Entries	COM/OLE entries pointing to missing files	On
Invalid Type Library Entries	Type library references to missing files	On
Windows Run History	History in the Run dialog (needs restart to clear)	Off
Invalid Application Paths	App paths pointing to missing executables	On
Invalid Font Entries	Font entries whose files are missing	On
Invalid Shared Tools Entries	Shared-tool references to missing files	On
Invalid Sound Entries	Sound entries pointing to missing files	On
Invalid Help Entries	Help entries whose help files are gone	On
Invalid Shared DLL Entries	Shared DLL references to missing libraries	On
Windows Installer Folders	Installer folder entries with no matching install	On
Windows Installer Components	Installer component entries that are orphaned	Off
Unused File Extensions	Explorer file-extension entries no longer used	On
Obsolete Software Entries	Entries for removed software	On
Obsolete COM Classes	COM class registrations for removed software	On
Interfaces to Missing TypeLibs	Interface registrations with no type library	On
CLSID Entries to Missing TypeLibs	CLSID registrations with no type library	On
Missing File Associations	File-type associations pointing nowhere	On
Invalid Firewall Rules	Firewall rules for removed programs	On
Invalid Shell Extensions	Shell extension entries with missing DLLs	On
Invalid MUI Cache	Cached language-resource references to missing files	On

The Windows Run History entry is the one that behaves differently: it is removed immediately, but Windows rebuilds the visible list until the next restart. A restart is required for the change to show.

Safety

The registry is a critical part of Windows. WinSysClean only removes entries whose target files are verified missing — it never guesses. Even so, always create a registry backup and a restore point before running a registry repair.

Registry repairs are most valuable after uninstalling software, when leftover entries are plentiful. A monthly repair keeps the registry tidy.

Set Default / Safe Settings

Like the other cleaning pages, Default Settings restores the safe factory choices. All registry repair switches default to On because each one only removes entries with confirmed-missing targets.