The bad pool entry. The pool block header size is corrupt. The bad pool entry. The pool block header size is zero. One incorrectly-calculated entry. The bad entry that caused the miscalculation. The pool block header size is corrupted (it is too large). The pool entry that should have been found.
We have created this article to help you fix this error message using multiple solutions. There isn’t one simple solution for all who get BADPOOLCALLER error as it can have multiple causes.Other Windows errors:.What’s BADPOOLCALLER error?Before we continue with solutions, you have to understand what does this error stand for and what does it mean. As you can see this error message’s name contains three words: BAD, POOL and CALLER.
Let’s take a closer look at each of them and see what do they mean.BADWhen talking about computers and, word “ BAD” usually stands for something wrong and corrupt. It means that there is something wrong with Pool header.POOLUsually, we don’t use word “Pool” alone. When talking about computers and software we use term “Memory Pool” which is used to allocate memory in Memory Manager.
Memory pool can be divided into “Paged Pool” and “Non-Paged Pool”. Both of these are located in the region of the address space.CALLERCALLER shows that the current thread is making a bad pool request.Hopefully, now you have some kind of idea what is this error.
To make it simple – this error occurs if there is memory related problem on your PC.Next, we can start with solutions. There are many of them, you should perform them one by one and see if it helped, if not move to next solution. Keep doing so until this issue is resolved.
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If the error occurs in the middle of Windows StartupIf you can launch your Windows without any problems and this error occurs while working with your PC, skip to the first solution. However, if BADPOOLCALLER error occurs on the Windows Startup and you are facing an infinite loop of Windows restarts, you will have to perform some additional steps. To fix this issue we need a working Windows. Therefore, we have two options:. Launch Windows in Safe Mode.
Use a Startup RepairAt first, we advise launching your Windows in Safe mode as it’s easy to do and you will be able to launch your Windows in new minutes. To do so, turn on your computer and while it’s booting, rapidly press a particular key on the keyboard until you see Advanced Boot Options or Startup Settings.Once the Startup Settings or Advanced Boot Options opens, you will have to choose Safe Mode or Enable Safe Mode from the menu. Your PC now should be launched in Safe Mode.Keys to press while the computer is booting:. If you have Windows 7 and older version, press F8 key over and over again to open Advanced Boot Options. If you have or Windows 8/8.1, press Shift + F8 key multiple times during startup.Hopefully, after doing everything, as shown above, you were able to launch your PC in Safe Mode and now you can proceed with our 1st solution. However, if you didn’t, you’re left with Startup Repair.Usually, for all problems that are associated with the Operating System’s Boot Manager failure, you have to perform a Startup Repair. It’s an inbuilt option that can be performed if you have Windows installation files – CD/DVD disk.
If not you can download them in the link below:1. Solution – redo all recent changesBefore we apply some complex solutions, let’s try to fix this starting from the easy end. Maybe this error started occurring right after you did some changes to your computer. For example, installed some kind of software or added hardware, peripherals. Try removing everything that you have added or changed recently to see if it makes any difference. If you have anything in mind that could be responsible for this error, redo it – uninstall or remove.We also advise removing all external USB devices, maybe one of them is causing this issue.
So remove everything like your speakers, headset, printer, scanner and so on. Leave only your keyboard and mouse plugged in. Now test your computer, if you no longer get BSOD then the cause of it was one of your peripherals. Keeping that in mind, you can identify which is it by plugging them back one by one and testing.
Once you have found the faulty device, try to update its drivers. Solution – Updating outdated/corrupt driversThis is the most common cause of BADPOOLCALLER error message and more than 2/3 of you will solve this issue by updating their drivers. First, you have to know that there are two kind of drivers – Windows and Hardware related. The first thing you should do is update Windows drivers through Windows Update settings. This won’t take longer than few minutes.If next to your error message you see something in brackets with the extension “.sys”, you can be sure that this is a driver related problem. If after deeper research you find out that it’s a hardware driver, download the latest driver from manufacturer’s website or you can do the same using Device Manager. Solution – Test your RAMIf this issue still exists after performing solutions above.
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This error might be connected with your RAM. You can try to test it using a special software, but before you do so check if there isn’t a loose connection between your RAM. Remove your RAM stick, clean it and install it back. Solution – Reinstalling WindowsIf nothing has worked so far, we advise reinstalling your Windows operating system. Sometimes it’s way faster than just performing complex solutions. In our practice, we have fixed numerous of Windows problems just by reinstalling it. This process isn’t long and you can choose whether to save your files or do a clean reinstall.We hope these solutions helped you fix the BADPOOLCALLER error, if not, see more advanced solutions on our “” article.
The Windows 10 Bad Pool Caller is often caused by driver errors or by overclocking. A pool is Windows-speak for memory allocated to drivers. Pool errors are often where either the allocated memory cannot be released or when a piece of data within memory isn’t there. If you need to fix Windows 10 Bad Pool Caller, read on.The Bad Pool Caller error usually results in a blue screen, if you’re comfortable working with memory dumps, I would suggest setting up a dump and using it to find out exactly what is causing the error, otherwise follow these steps.Fix Windows 10 Bad Pool CallerAs mentioned, the prime suspects in a bad pool caller error is either overclocking or bad drivers. Occasionally it can be bad RAM too but that’s quite rare.
If you overclock your computer, we should begin by returning it to stock clocks.1. Reboot your computer into the BIOS.2. Return all clocks to stock.3. Save and reboot.4. Allow to boot into Windows and retest.Give it several hours of operation to throw up the error again before calling it fixed. Alternatively, run the Windows Memory Diagnostic a couple of times to test your RAM.If that doesn’t work, try this update all your drivers.
It is a laborious task but as the bad pool caller error is directly linked to either memory or drivers, it’s the next logical step.Download and update all your drivers manually.Or:Upgrade your BIOS to the latest version.Or:1. Navigate to Control Panel, System and Security and System and Device Manager.2. Right click each piece of hardware for which you have installed a third-party driver and select ‘Update Driver Software’. Work your way through GPU, audio, webcam, mouse, keyboard, printer and any other third party drivers you have installed on your machine. Check for updates for all of them.3. Note hardware that does not automatically download new drivers and visit their respective websites for newer versions. Manually download and update as appropriate.In the vast majority of cases, either returning a computer to stock clocks or upgrading BIOS or driver software fixes bad pool caller errors.More useful Windows 10 tutorials.