Damages to Registry Database Caused by Registry Cleaner
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.
Discover the disadvantages using Registry Cleaners:
Critics often claim that there is no authentic way of knowing whether a third party application has an invalid key, redundant information or not.
Weakly developed registry cleaners may certainly not identify whether a particular key is still in use by Windows or what dire consequences it may have on being removed.
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The abovementioned flaw in Registry Cleaners create some worrisome situation such as malfunctioning of system, loss of functionality and accessing Microsofts application compatibility updates to prevent harmful Registry Cleaners.
Registry cleaners are unable to repair undeletable registry keys created by null characters embedded in their names. This can only be done by dedicated tools like Sysinternals RegDelNull, which is now owned by Microsoft.
Capability of Recovery:
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 prove inefficient in case of virtualized application because all the Registry entries are written for virtual Registry. This virtual Registry is specifically designed for a virtual application instead of real one.