Advanced Registry Cleaner PC Diagnosis and Repair

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PC Repair Tools Summary


4.7 stars out of 13 votes

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My PC Repair Tools Review

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RegistryMum Registry Cleaner

Using RegistryMum Registry Cleaner allows you to clean and fix registry errors that cause application failure, system freezing and slowdowns, etc. What is more it can remove unwanted system startup programs to speed up your PC and boost up system boot time. The principle behind RegistryMum Registry Cleaner is to provide our users with an easy to use program that can check and repair multi types of system problems and slow PC in a fast, effective and efficient way, also within 3 minutes. With RegistryMum registry cleaner, you can. Repair errors on your PC. Thanks to advanced technology for detecting errors RegistryMum scanning identifies, removes and repairs safely. Speed up your PC. Technology RegistryMum defragmentation optimizes your system database to increase the speed of the PC. Clean your system. RegistryMum cleans all the missing and useless system database entries to keep it in perfect condition. Avoid crashes and deadlocks. RegistryMum repairs corrupted system database entries, you avoid crashes or deadlocks. Improve PC Performance. RegistryMum delete unwanted system database entries and you will immediately notice improved performance of your PC. Read more...

RegistryMum Registry Cleaner Summary

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Registry Easy Cleaner

Registry Easy uses a high-performance detection algorithm that will quickly identify missing and invalid references in your Windows registry. With a few easy steps Registry Easy will scan your entire Windows registry for any invalid or obsolete entries and provide a list of the registry errors found. After that you can choose to clean list items with selection or automatically repair them all. For your convenience and protection, Registry Easy also provides a backup mechanism for any repaired files so that you can easily recover any changes if required. Registry Easy Features and Benefits. Registry Easy will Automatically Speed up , Clean & Repair Your PC Registry of the following: Windows Installer Errors, ActiveX Errors, ActiveX Control problems, Windows Startup Errors, Windows Explorer Errors, Windows Media player Errors, l sass,exe , svchost,exe &other exe Errors, Windows Operating System Problems, Registry Errors, Dll Errors, Runtime Errors, IExplore and System32 Errors, System Crashes, Slow PC Performance, Chkdsk Issues, Computer Freezing, Internet Explorer Errors, Javascript Errors, Dr Watson Errors, Hardware Malfunction, Blue Screen, Vista, XP, 2000, 98 and ME Issues, Scan Disk, Driver Errors, Corrupt Registry Files, Task Manager related, Computer & Application Shutdown, RegistryEasy detects the most registry problems, Cleans registry, fixes errors, and optimizes your PC for better performance, Prevent application crashes, Load windows faster, Run applications smoothly, Maintain your system like new, Manage your Internet Explore more handle, Regain disk space, Protects your privacy, Easy to use, saving you time and energy, Unlimited free technical support, Prevents PC from Freezing or Crashing, Registry Easy Key Features and Benefits: 1-Click Maintenance File Recoveryer Password Recovery IE Management Optimize Internet Easy Repair Wizard Shortcuts Fixer Winsock2 Repair File Splitter & Joiner Folder Backup High-performance scan, Junk Files Cleaner, Duplicate File Cleaner, Evidence Cleaner, System Optimizer, IE Restore, Browser Hom Manager, Automatic/manual removal, Back-up registry, Restore Point, Block ActiveX, Error Utilities, Register ActiveX, Program Shortcuts, Checks Invalid User Software Settings, Checks Invalid System Software Settings, Checks Invalid Application Paths, Checks Recently Used Files, Checks Invalid Class Keys, Checks Invalid ActiveX, Ole, Com, Checks Uninstall Sections, Checks Invalid Font, Checks Invalid Shared known Dll's, Checks Invalid Startup Programs, Checks Invalid Shortcuts, Checks Invalid File Associations, Checks Invalid Start Menu Items, Checks Recently Used Files, Deletes Empty Registry Keys, Checks System Service, Organizes Windows Startup Items, Add/remove Program Manager, Memory Tweak, Auto Updated

Registry Easy Cleaner Summary

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Windows Registry

The Windows registry is a hierarchal database used by the Windows operating system to store information and settings for hardware, software, users, and preferences on a system. The registry is an important part of the Windows XP boot process. These registry files are recognized by their distinctive names, which begin with HKEY_, as shown in Table 5-4, followed by the name of the portion of the operating system under their control. Every setting in Windows from the background of the desktop and the color of the screen buttons to the licensing of applications is stored in the registry. When a user makes changes to the Control Panel settings, file associations, system policies, or installed software, the changes are stored in the registry. Table 5-4 Registry Keys Table 5-4 Registry Keys

Backup Filenames and Locations

The ACS System Restore feature restores the ACS user database and ACS Windows Registry information from a file that the ACS Backup feature created. ACS writes backup files only on the local hard drive. You can restore from any backup file that you select. For example, you can restore from the latest backup file or, if you suspect that the latest backup was incorrect, you can select an earlier backup file to restore.

Network Admission Control Appliance

This chapter describes the NAC appliance, which is also marketed as Cisco Clean Access (CCA). The NAC appliance offers a dedicated NAC deployment option that provides admission control functions including authentication, posture validation, and remediation. The NAC appliance is composed of a server and manager component. The NAC appliance server implements the admission control features, whereas the NAC appliance manager configures the policies on the NAC appliance servers. The NAC appliance also features an optional client agent for the Windows end stations within the network. The client agent provides additional security posture validation options, including Windows registry value, file, service, and application checks. The client agent can also assist the remediation process to help the end station download the necessary software updates to authenticate and safely join the network.

Activity Procedure

Step 2 Ensure that the entry in the Check Category drop-down menu is Registry Check and that the entry in the Check Type drop-down menu is Registry Key. Note In this case, the check will look for a registry key created by the update Step 4 From the root key list, choose HKLM (HKEY_LOCAL_MACHINE) for the Registry Key. Step 5 In the Registry Key field to the right of the HKLM drop-down menu, enter SOFTWARE Microsoft Updates Windows XP SP2 KB835732. Tip As a shortcut, you can navigate to the tested key in the Microsoft Registry Editor (search for KB835732), select the key reference, and choose Copy Key Name from the Edit menu. After copying the key name, paste the key name into the registry key field. Remove any trailing spaces.

Task 5 Configure a Registry

Complete the following steps to configure a registry set that includes all registry keys under HKEY_LOCAL_MACHINE SOFTWARE CISCO except for the registry keys under Step 4 Enter HKLM SOFTWARE CISCO ** in the Registry keys matching field. Step 5 Enter ** CSAgent ** in the But not field, to create an exception to the registry keys entered in the previous step.

Registry Event Reports Windows Only

Registry reports provide details such as the name and value of the registry key that was accessed and the process that accessed it. More specifically, they provide the following information Registry reports provide details such as the name and value of the registry key that was accessed and the process that accessed it. More specifically, they provide the following information Key name This is the name of the registry key accessed during the event. Value name This is the registry value accessed during the event.

Configuring Static Application Classes

Access control rules are application-centric. This means that when you write your rules, you should understand that the application(s) you select are the heart of each rule. In your file, network, registry, and COM rules, you are controlling what applications can do to the files, addresses, registry keys, and COM components that you specify. So, when you begin creating rules, think in terms of the applications that your enterprise as a whole uses and the manner in which you want to limit an application's ability to perform undesired actions.

Requirements Rules and Checks

You must map requirements, rules, and checks to implement the necessary remediation actions that you will define for your network-attached systems. Requirements implement decisions (remediation actions) as a result of what you determine systems must have to be considered compliant. Rules are mapped to a requirement in order to define the necessary guidelines that must be met to in turn meet the requirement. Checks are single parameters that must exist for custom rules to be met, such as the existence of a registry key or process.

Cisco Clean Access Agent

Cisco Clean Access Agent is required for the most robust level of interrogation and interaction the NAC Appliance can enforce. Clean Access Agent allows the system to collect vulnerability assessment data and provides remediation options to the interrogated system as defined by centrally configured policies. Clean Access Agent is available for Windows systems, and its use can be enforced, as illustrated earlier in this chapter, by configuring the agent login configuration page. The user is prompted to download and install Clean Access Agent to be granted network access. Prior to granting access, Clean Access Agent can look for installed software, registry keys, files, processes and services. In addition, it can require the update of several antivirus and antispyware packages as well as perform various other installations and provide guidance to the user in remediating other issues manually if necessary.

Setting Up Basic Host Scan

To configure CSD to scan a remote computer for basic information, click Add under Basic Host Scan and select the type of basic scan you would like to configure. As mentioned in the previous section, a basic Host Scan can identify registry keys, active processes, and files located on the remote workstation. For example, if you want CSD to scan a registry key from the workstation and based on that information you want to apply appropriate action by DAP, add Registry Scan under Basic Host Scan. The system prompts you to configure the following attributes Entry Path menu Select the initial path of the registry key from the drop-down menu. For example, if the registry key you want to scan resides at select HKEY_LOCAL_MACHINE from the drop-down menu. Entry Path field Specify the complete name of the registry key except the initial directory path that you provided on the Entry Path menu. For example, if the registry key you want to scan resides at Figure 5-54 Defining a Registry Key Scan...

Cisco NAC Appliance Agent Cisco NAA The Cisco NAA software resides on

Microsoft Windows systems and can verify if an application or service is running and if a registry key exists or if the value of a registry key is known. The Cisco NAA is referred to as a read-only agent the Cisco NAA does not alter client system information, but reads the information and reports this information to the Cisco NAC Appliance Manager (Cisco NAM). The Cisco NAA ensures that, for example, a corporate laptop has an up-to-date configuration of the standard corporate software before the laptop is allowed to access the corporate network. The Cisco NAA can ensure that users install the resources necessary to keep their machines from becoming vulnerable or infected.

Managing the Cisco Security Agent

The Cisco Security Agent represents the last line of defense in a layered self-defending network. The Cisco Security Agent operates directly on the end station by monitoring the OS kernel and requests to the file system, network resources, and registry keys. The Cisco Security Agent can reside directly on the PC, laptop, or server in the network. Cisco Security Agent is supported on Windows, Solaris, and Linux machines.

Included Registry Sets

CSA MC ships with several preconfigured registry sets that you can use in your registry access rules. Some are application specific, others are operating system specific. This section describes a sample of the included operating system-specific registry keys. Step 6 Enter a registry key in the Registry Keys Matching pane. You must enter a value in this field if you are creating a registry set. The registry key fields (matching and exclusions) must begin with a wildcard or specification of a registry hive. There must be at least one non-wildcarded component in a registry key. Step 7 Enter exceptions to registry keys in the But Not pane.

Host Intrusion Prevention CSA

CSA is end-device or host software that monitors the behavior and critical resources of the end-device or host. CSA also contains an option that can implement a personal firewall service. CSA provides day-zero protection, which is a fancy way of saying that it can protect against certain attacks before the attack is known. CSA does not require signatures like legacy Host Intrusion Prevention and antivirus products. CSA provides this day-zero protection capability by detecting the symptoms of an attack, rather than the unique identifier of the attack. For example, CSA can prevent the modification of registry keys and can detect a buffer overflow. The ability to detect and prevent the symptom of an attack enables CSA to protect against certain attacks prior to the identification and naming of the

If the host cannot be seen by the hacker the hacker may launch a Trojan application such as W32QAZ to determine the

The first step is to review all the information on the host that the hacker has collected for example, files containing usernames and passwords and registry keys containing application or user passwords. (Any available documentation, including e-mails and other documents, may also be of assistance.)

Installing ACS on a Windows Server

Step 10 Enter a password that will be used to encrypt the local ACS database. The password must be at least eight characters in length and should include both letters and numbers. The password you enter is kept encrypted in the Windows Registry. Record the password you used and keep in a secure place. If there is ever a critical problem with the database, the password might be needed to access the database manually. After you enter the password, click Next to continue.

Patch Link

Figure 12-3 illustrates how the PatchLink Agent and Posture Plug-in communicate with CTA and the Windows Registry. Figure 12-3 illustrates how the PatchLink Agent and Posture Plug-in communicate with CTA and the Windows Registry. The PatchLink Agent communicates with CTA via the Posture Plug-in. It also reads and updates Windows Registry entries.

Step 17

Expand the HKEY_CURRENT_USER Registry key. Expand the Control Panel Registry key. Expand the PowerCfg Registry key. Right-click the Screen Saver.Stars Registry key. Click Delete. Click File, Exit in the Registry Editor window. Browse to the My Documents folder and locate the backup.bkf file. Double-click the backup file to bring up the Backup Utility Wizard. Click Next (see Figure 5-87).

Report Components

Each category drop-down menu provides an overall summary view. This view displays all the data of that particular category that was accessed during the analysis time frame. If you select to view Behavior Summary for a report category, additional views further sort the information that the behavior analysis has collected by time frame, individual resource (for example, single file or registry key), source and destination address in the case of network resources, and other criteria depending on the resource type in question.

Creating Checks

Checks are logic that allows the Cisco Clean Access Agent to verify that a registry key, file, service, or application exists and, if pertinent, whether it is running or not running. To create a new check, you simply navigate to the New Check option under the Rules menu option. You will now configure a simple application check to verify that ftpserv.exe is running on the system you are interrogating. The following steps are illustrated in Figure 9-24.

Step 1 Set Up CSD

2 Choose Configuration Remote Access VPN Secure Desktop Manager Windows Location Setting and define a prelogin sequence based on registry key and IP address range. Create a new Windows location called CorpOwnedHomeMachines that has a registry key check of and an address check where the address should not fall in the 27 subnet.

Configuring DAP

A user connection might match multiple DAP records. For example, you can have a DAP record that only scans the remote workstations for a registry key. You can have another DAP record that checks the remote computer for an active process. If a remote workstation has the registry key and the process is active as well, that workstation will match against both DAP records. In this case, the security appliance combines both records dynamically and applies an aggregated access policy to a user connection.

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