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Windows Registry

The Windows registry is a local database of settings used by Microsoft's Windows operating systems. Questions about the registry itself, registry problems, and software which changes the registry belong here.

500 Questions

Why does windows automatically save the registry?

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Asked by Wiki User

Windows automaticly saves the registry in order to create a restore point. In windows you can restore the system to a previous set up, and part of that process is replacing or removing changed registry keys. Without these saved resistries restoration would be much harder, if not near impossible.

What are the files that make up the registry on your system called?

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Asked by Wiki User

While there are five main files that make up the registry each one of these file contain hundreds of files apiece. Almost any action you take, such as installing application software or hardware, will almost always result in a change in the registry. It is because of this that the amount of files in the registry is almost impossible to determine. Even trying to find the average files that would be in a given systems registry is next to worthless because the registry can vary so greatly in size that averages become worthless. Each of the five keys can have subkeys, and each subkey can have more subkeys as well as one or more values and then each of these can have a subkey and so on and so on. The only other thing about the registry that I feel I should mention is that working on it can with the single click of the mouse can severely damage your computer and working in the registry should only be done by a IT professional with the proper training and experience. If you choose to work on it yourself just make sure you back it up before altering or deleting any files or values found within.

What safeguards does the registry editor have to keep you from making mistakes?

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Asked by Wiki User

For the most part, none. The only thing which might stop you is if the key is locked by another process which is writing to it, or perhaps even reading it. Because of this, you need to be careful what you do. With a single key stroke you can break your OS, a program, or void the paid registration of a program.

What to do about message windows low on registry space--The system has reached the maxium size allowed for the system part of the registry Additional storage requests will be ignored?

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Asked by Wiki User

Solution to msg "LOW ON REGISTRY SPACE"FIRST: If you've already gotten this message, download NTREGOPT (http:/wwwzperiodzlarshedererzperiodzhomepagezperiodztzhyphenzonlinezperiodzde/erunt and run it. This will "compress" your registry and reduce the size greatly. This is the only "fix" I have found for this error. Using this program allows me to reboot and Windows still loads, if I do not use it, Windows does not load afterwards. I have not used the fix mentioned after this, and I don't think there is a point to using it. NTREGOPT works fine for me. Note that if this error message occurs on Windows XP or 2003 Server then the error is due to a currupted page file. These operating systems do not have a limit on the registry space. See the addendum at the end of this article.

Pls read this Article carefully and act with additional care (at your own risk) :

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

By default, RSL is 25 percent of the size of paged pool. Setting up the size of paged pool (see PagedPoolSize value of the Registry key HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Memory Management) also affects the size of RSL.

You can also manually set the RSL:

1. Run the Registry Editor (REGEDT32.EXE).

2. Locate the key HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control.

3. Modify the value RegistrySizeLimit (create it first it if it does not already exist) to reflect the desired size, in terms of bytes.

NOTE: RegistrySizeLimit must have a type of REG_DWORD, and a data length of 4 bytes, or it is ignored. If you set the value RegistrySizeLimit to less than 4 megabytes (MB), it is forced up to 4 MB. If you set it to greater than about 80 percent of the size of paged pool, it is set down to 80 percent of the size of paged pool (it is assumed that paged pool is always more than 5 MB). If you set it to 0xffffffff the maximum size allowable (or 80 percent of paged pool, up to 102 MB) is set.

4. Shut down and restart Windows NT for changes in RSL to take effect.

Note A system restart is required after the RSL has been increased either through the graphical user interface (GUI) or the registry, because this change does not happen dynamically. If you do not restart the system, you may experience the following event:

Event Type: Error

Event Source: Userenv

Event Category: None

Event ID: 1000

Date: date

Time: time

User: NT AUTHORITY\SYSTEM Computer: name

Description: RegLoadKey failed. Return value Insufficient system resources exist to complete the requested service for C:\Documents and Settings\ntuser.dat.

In Windows NT 4.0, and Windows NT 4.0, Terminal Server Edition, the maximum paged pool size is 192 MB, so RSL can be a maximum of 153.6 MB. For additional information, click the article number below to view the article in the Microsoft Knowledge Base: 142719 (http://support.microsoft.com/kb/142719/EN-US/) NT Reports Out of Resources Error When Memory is Available

In Windows 2000, the maximum paged pool size is approximately 370-400 MB, when you do not use the /3gb command-line switch (this makes the RSL greater than 296 MB). If you use the /3gb switch, these values remain unchanged from Windows NT 4.0.

Additional Notes on RSLRSL sets a maximum, not an allocation (unlike some other such limits in the system). Setting a large RSL will NOT cause the system to use that much space unless it is actually needed by the Registry. It also does NOT guarantee that that much space will be available for use in the Registry.

In Windows NT version 3.1, paged pool defaults to 32 MB, so the default RSL is 8 MB (enough to support approximately 5000 user accounts). In Windows NT 3.5, paged pool can be set to a maximum of 128 MB, so RSL can be no larger than about 102 MB (enough to support approximately 80,000 users; however, other system limitations might keep this number of users considerably lower).

RSL includes space in the hives themselves, as well as some of the Registry's runtime structures. Other runtime structures are either billed against standard quota, or are protected by size limits and serialization.

To ensure that you can always at least boot and edit the Registry if you set RSL incorrectly, quota checking is not turned on until after the first successful loading of a hive (that is, loading a user profile).

For all but a few domain controllers, RSL never needs to be changed.

The limitations imposed by RSL are approximate.

Solution Provided by MICROSOFT CORP.

Addendum (provided by drzcmajul)

The page file needs to be overwritten as it has been corrupted. Follow the following steps:

1. Enter System in control panel (classic view)

2. Click on the Advanced tab

3. Click the settings button under "performance"

4. Click the Advanced tab in Performance Settings

5. Click Change virtual settings

6. Choose No paging file on the settings and click Set

7. Exit and restart the computer.

8. Repeat the first five steps of these instructions.

9. Choose System managed size on the settings and click Set

10. When you exit you will be asked if you want to overwrite the previous page file. Allow this action.

11. Restart your computer. You will be rid of the error message. Also, your programs may run better.

How do you recover an old hotmail account?

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Asked by Wiki User

Navigate tot he new live login website and click the button under log in about not having access to your account. You will have to provide Microsoft with your secondary email or answer your secret questions.

What are the top 3 registry cleaners?

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Asked by Wiki User

Registry cleaners can be ranked in a number of ways. Most registry cleaners have been ranked in terms of the number of registry errors they catch in the computers. There are many good registry cleaners available such as RegInOut Registry Optimizer, Registry Defense, Ccleaner and many others. However, according to many users onservation RegInOut Registry Optimizer finds the maximum number of registry errors in the computer.

Can editing the registry be dangerous?

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Asked by Wiki User

Yes, it can. If you don't know exactly what you are doing, you can really hose your computer.

Where is registry stored?

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Asked by Wiki User

It is stored in the C:/windows/system32/config. The hive you want is located under its name.

What is the window with controls that lets you tell Windows what you want?

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Asked by Wiki User

A menu is a window with controls that lets you tell Windows what you want. Menus allow you to navigate browser sites, programs, and other such features within Windows.

What tool can be used to back up the Windows registry?

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Asked by Wiki User

To be honest, you really don't even need a tool for this. All you have to do is locate the registry hives and copy them somewhere, or even make copies in the same folder, but with other extensions.

Or you can use Regedit that comes with Windows. While it is good for exporting portions of the registry, it is not good for exporting the entire registry. Some keys or branches will be locked while you try to export them, and they will be omitted from the exported file.

Why does your computer get slow page loads?

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Asked by DaveDinRI

It could be because the hard drive is fragmented and has a harder time accessing information on it. Run a defrag. To do this click Start>Accessories>System Tool> Disk Defragmenter. Also run a disk clean up which can be found in the same folder.

It also could be a virus or a bunch of spy ware or your internet could be throttled or slowed at the moment for what ever reason.

I use Auslogics Disk Defrag along with Advanced System Care : free edition and I never have a single problem with my computer.

What are files that make up the registry called?

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Asked by Wiki User

Files called "hives".

How do you get sound back to your windows xp after you deleted it?

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Asked by Wiki User

Your only hope is the System Restore function.....

Um, not quite. Go to the manufactures website, ex. Dell.com, support, drivers, put in your model number, download and install the lost device software\driver. LW

In what folder does Windows xp store a backup of the registry when backing up the system state?

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Asked by Wiki User

Windows vista and 7

%system root%/system32/config/

ie: C:\system32\config

Where is the Land Registry office for Cheshunt Herts?

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Asked by Wiki User

This is perhaps your closest

Land Registry

Trafalgar House

1 Bedford Park

Croydon

CR0 2AQ

or

Land Registry

Twyver House

Bruton Way

Gloucester

GL1 1DQ

Note:

Non-business customers: addresses for applications and correspondence If you are a member of the public, please send applications and correspondence to:

Citizen Centre

PO Box 6350

Coventry

CV3 9LP

How do you hack into K9 web protection alert free?

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Asked by Wiki User

There is an program called ultra surf. that's what I did because my parents installed K9 and my friend told me 'hey, use ultra surf' It really worked. It unblocks every site that there is blocked!!!!!! if you go to control panel and go on add or remove programes you should be able to remove it compleatly

What happens when you uninstall software?

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Asked by Wiki User

registry entries can be corrupted due to bad installation files or it may not be removed due to which again when you try to install same application again you may encounter error.

this is the major problem concerned with installation and uninstallation.

When was HM Land Registry created?

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Asked by Wiki User

1862, which means we are celebrating our 150th year!

The attached link gives you a brief rundown on our history

What are some music websites that go through school firewall?

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Asked by Wiki User

tonz hon .com (take out the space)when you get there click English then search up the song you want to play. it really works and i use it because for me grooveshark is blocked don't tell anyone about tonz hon. com website.

What are the common problem in computer hardware?

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Asked by Mrtbone29

There can be hundreds of hardware problems, the most common i have come across is a faulty piece hardware attached witch can cause to you computer not starting properly