How To Delete Trial Software Registry Locations

CorelDRAW Graphics Suite 2017: How to manually uninstall. Remove these programs in this particular order, if installed. Registry locations: You may want to. I Just found a cool tweak on how to extend software trial period manually. I will teach you how to manually tweak your system registry and reuse your software trial version over and over again.All you need to do is to follow this steps accordingly. How To Remove Expired Trial Software From Registry How to Reinstall Trial Version Again and Again Uninstall the software completely. Go to run Type regedit, hit enter Registry editor will. In this method you need to find and delete your trial software registry. After trial period is expired, uninstall the software and follow the steps. How to Completely Uninstall / Remove a Software Program in Windows without using 3rd Party Software? - Generally all computer users install various software programs regularly. How to Completely Uninstall / Remove a Software Program in Windows without using 3rd Party Software? Remove Software Keys from Windows Registry. I will also explain you about how to remove trial version software from registry in easy way. Most of the times what happens is you think that after uninstalling the software in your PC. You will be able to remove the files and applications.

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When you uninstall a program, it is a “reasonable” expectation that all traces of it will be removed from your system, but that is often not the case. Why is that? Today’s SuperUser Q&A post has the answers to a curious reader’s question.

Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-driven grouping of Q&A web sites.

Screenshot courtesy of wandersick (Flickr).

The Question

SuperUser reader Mark Boulder wants to know why some registry values always remain after a normal software uninstall:

Expanding on the SuperUser topic How do I remove residual traces of uninstalled software from the registry, why is it that every time I uninstall a program and then later look it up via RegEdit, it is still there?

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Why are the majority of Windows applications so intent on leaving tiny little traces of themselves in the registry? Does the fault lie with Windows or with the developers?

Why are registry values usually “left behind” after normally uninstalling software?

The Answer

SuperUser contributors Lukas Rieger and Keltari have the answer for us. First up, Lukas Rieger:

Because it is impossible. The registry has multiple root nodes but only two interesting ones: LocalMachine and CurrentUser. Normally, the setup writes values into LocalMachine, and the running program only writes into CurrentUser (actually, unless the setup messes with the permissions, the running program cannot write into LocalMachine).

While keeping leftovers in LocalMachine is laziness (as pointed out by the other answers), it is not possible to clean the CurrentUser part.

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If a program is installed per machine (which most are) and multiple users use it, what should the uninstaller do? It could safely remove the user settings of the current account, but the current account might not be your account. This happens if you started the uninstaller from a non-admin account and then entered the credentials of an admin account, the setup is now running under that account, not the first one.

What about the other users? It could try to enumerate all users, but their registry keys might not be loaded (Windows is lazy and only loads the things it needs).

But you should not even try that. If you use roaming profiles (i.e. terminal services) and then delete all settings on uninstall, you could really mess up and delete stuff that is actually still in use. A terminal server is basically one Windows machine where multiple users log-in at the same time and use applications. Say you have two terminal servers running one application. You uninstall the application on TS1, now all the settings for all users are gone on TS2 because you have roaming profiles. Oops.

The same also applies to files in the per-user directories. In the setup of my company’s programs, I delete the per-machine stuff but do not touch the per-user stuff, not even of the user currently running the setup.

Followed by the answer from Keltari:

There are many reasons why this is the case, however, it is not the fault of Microsoft or the Windows operating system.

The following is a list of some cases and reasons why registry entries are left behind:

Bad Programming – The developer did not write the application uninstaller properly and the registry entries are left behind. In addition to that, the uninstaller might not have/use the proper permissions to remove the registry entries. It could also be that there is more than one application that uses those keys. For instance, two applications from the same developer that write to the same keys.

Left On Purpose – As one comment mentioned, these entries could have been left on purpose. Some applications have a trial period and, after that period, you might choose to remove the application. If you choose to reinstall the application later, those keys give the application information on when it was installed. In addition to that, some developers might choose to leave those keys in case you choose to reinstall the application. If the developer used registry keys to store your customizations, they might leave them there so that when you reinstall the application, all of your customizations persist. In the grand scheme of things, registry keys only take up a few bytes.

How To Delete Trial Software Registry Locations Free

Should you remove the keys? That depends. The Windows registry is a dangerous place to mess around in. You can inadvertently break your system. Leaving the extraneous keys will not hurt the system. Some people will say cleaning/defragging the registry will speed up your system, but that has been proven false repeatedly.

If you really want to get rid of those programs, there are some uninstaller tools that can remove every trace of a program. These programs will watch the installer of another program and record all the actions done to the file system and registry, then completely remove those actions. One issue with these tools is that it is possible they can remove things you might want to keep.

Have something to add to the explanation? Sound off in the comments. Want to read more answers from other tech-savvy Stack Exchange users? Check out the full discussion thread here.

How does trial version software work

There are many methods that are used by programmers to know when the trial period of a software has elapsed. In earlier times, something as basic as checking the system date was done. But over a period of time sophistication has entered. Since no two programmers think alike all the time, there can be no certain method to be explained in this context.

Creating hidden registry entries

Some trialware makes entry into the Windows registry about when it was installed, along with the time of installation. The software, when launched, compares the registry noted date and time with computer date and time. If the latter is greater, the trial version of the software or trialware, as it is called, stops functioning. But this is the easiest method that can be employed by any trialware. Such entries are not created in obvious places under obvious names, but instead are ‘hidden’

How To Delete Trial Period Of App On Iphone

Since programmers too know that it is easy to scan registry with program remnants and reinstallation for use, they might add few more hidden registry entries that do not look related to the trialware. That means, when you install a trial version of a software, it may create a few registry entries in say, HK_LOCAL_MACHINE or HK_CLASSES_ROOT where normally, no user will look into. Further, the names of keys would be unrelated to the program so that even if a user is figuring out keys to delete, he or she does not know if a key belongs to the trial version of a software. That way, programmers can prevent a working reinstallation of the trialware.

Trial software use hidden and system files

Some programmers create hidden files or system files related to the trial version of a software and place it in System32 folder or into the folder containing drivers. They could even be 0 byte or empty files. If they add an extension that goes .sys or .ini, users will think twice before even editing the files. Junk cleaners too will ignore them.

Further, the files can be encrypted and if users try to make any changes, the trial version completely stops working as result of manipulation of the related files. In this case, when the program is installed, it creates several files in different locations, especially the ones that are related to Windows functioning. Based on the data written to these files, the program can detect if the trial period is still remaining or if it has expired. This is another explanation of how trial versions of software work.

Read: TrashReg will remove obsolete Trialware registry keys too.

Trialware use Computer MAC address

In this case, the computers’ address is stored to the servers of the software publishing company along with other details such as data and time and probably a snapshot of the volume containing hidden files. These hidden files have been explained in the above section. This storage of MAC addresses of the computers or smartphones helps the trialware in deciding two things. First, if the trial period has been expired. And secondly, it tells the computing company that if the user is trying to install another version of the trialware on the same machine.

For example, user can download the Student Edition of Microsoft Office to a machine. The address of the machine is stored to Microsoft’s server. After the trial period of 90 days, if the user attempts to download and install another Student Edition of Microsoft Office to the same machine, Microsoft knows it and prevents installations.

This method prevents a working reinstallation of the trial version of a software, even if the user formats his Hard Disk Drive. The MAC address of the computer or smartphone or tablet registered with the publishers’ servers will tell the program that it was installed once on the program. The drawback could be that if the user tries to reinstall the program after a format even before the trialware’s trial period expired, she or he may not be able to reinstall a working copy.

How To Delete Registry Value

Can you reset trialware and use it forever

There are ways discussed on the Internet that say that this is possible. Sure there may be ways, but these days, developers are so smart, that they cover all the bases to ensure that one cannot reset trialware. In any case, cracking trialware or resetting it, to extend its use, is something which is not legal and therefore will not be discussed here.