Registry Mutilation Using a Registry Cleaner
Windows registry mutilation using a registry cleaner:
Registry Cleaners have their own disadvantages like poor distinction feature. However, some Cleaners easily make distinction about the severity of errors but they fail to rate errors and usually classify them critical without any reasonable ground for claim.
What are the drawbacks of Registry Cleaners?
Critics question the validity of Registry Cleaners on the ground that there is no reliable method of assessing whether the third party application contains redundant information, invalid key or not.
Inefficient and poorly crafted Registry Cleaners could not make distinction between used and unused key for Windows. It could not assess the detrimental effects of removing used key from computer.
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This has given rise to instances like system instability and/or loss of functionality, and subsequently, the release of application compatibility updates by Microsoft for blocking the registry cleaners causing problems.
Registry Cleaners have their own limitations for instance they cannot correct scenarios like undeletable registry keys owing to insertion of null characters in their names. Some specialized tools such as Sysinternals (now Microsoft) and RegDelNull utility can perform this task.
Potential to Recover:
A registry hive, which a system is unable to mount, cant be repaired by a registry cleaner.
However, there are several ways supported by Microsoft to repair a corrupt Registry. For example Automated System Recovery feature of Windows XP wherein last Known Good boot menu is achieved by using System Restore or by running setup.
Cleaning of Malware:
Despite all these problems, a corrupt registry can be recovered in several ways supported by Microsoft. For instance Automated System Recovery by using System Restore or by running setup from the Last Known Good boot menu.
Registry cleaners are unable to sense or flush out registry entries related to a rootkit that tends to conceal this fact from other procedures.
It is a must for a specialized tool to compare results from raw core registry storage with that given by Registry API.
Functioning of Registry Cleaners in case of application virtualization:
Registry cleaners fail to prove worthy in sanitizing registry entries related to virtualized applications as registry values in this case are written on a virtual registry that is application-specific in place of a real one.
