I am experiencing a persistent and difficult-to-reproduce performance problem on my Windows PC where applications become temporarily unresponsive when AVG real-time protection is active and I perform operations involving a large number of files. The issue is most noticeable when I copy, extract, rename, or reorganize a large directory containing many small files, although it can occasionally happen while opening applications that access a significant number of files during startup. Under normal circumstances, the system remains responsive and applications launch normally, but during these heavier file operations the affected application can stop responding for several seconds and sometimes remain frozen until the file activity has finished. What makes the problem confusing is that there is no obvious system-wide failure: the mouse continues moving, Windows itself remains usable, and some applications continue working normally, while the particular program performing the file operation appears to be completely stuck. I initially suspected that the storage drive might be responsible, but the behavior does not consistently occur when AVG protection is disabled, which makes me wonder whether real-time scanning is interacting with the way certain applications access files. I would like to understand whether there is a known AVG protection component or scanning behavior that could cause this kind of temporary application lockup during intensive file activity.
The problem seems particularly noticeable when working with folders containing thousands of relatively small files rather than a single large file. For example, when extracting a large software project, development environment, backup directory, or archive containing many individual files, the extraction process can progress normally for a while and then suddenly appear to stop. During these pauses, the application window may show the standard Windows “Not Responding” state even though the process eventually resumes without being terminated. In some cases the delay lasts only a few seconds, but on larger operations I have seen repeated pauses that significantly increase the total processing time. I have monitored basic system activity during the problem and noticed that disk activity can remain elevated while the application itself appears inactive. CPU usage also changes depending on the operation, so I have not been able to identify one consistent resource bottleneck. The same storage drive can otherwise perform normal read and write operations without obvious problems, and ordinary browsing, document editing, and other applications do not produce the same behavior. This makes the issue feel more like an interaction between real-time file inspection and applications that rapidly create or modify many files rather than a simple hardware failure. I am particularly interested in knowing whether AVG temporarily queues or holds file-access operations while scanning and whether that could explain why the application appears frozen even though Windows itself continues responding.
I have already tried several basic troubleshooting steps to determine whether the issue is related to the operating system, storage, or background software, but I have not found a reliable solution. I have restarted the computer, allowed Windows updates to complete, checked the storage drive for errors, and made sure that AVG itself is fully updated. I have also repeated the same type of file operation at different times of the day and under different system workloads, but the behavior still occurs intermittently. One of the more useful comparisons has been temporarily disabling the relevant AVG protection feature and repeating the same operation with the same files. In those tests, the application generally completes the operation with fewer interruptions, although I understand that disabling protection is not an appropriate permanent solution. I therefore do not want to simply leave real-time protection turned off, especially because the whole purpose of running AVG is to maintain protection while the system is being used normally. I am trying to determine which AVG component could be responsible and whether there is a safer configuration or diagnostic procedure that can confirm the cause without unnecessarily reducing the system’s security.
Another complication is that I do not want to start adding random exclusions to large folders without understanding the security implications. Some of the directories where I notice the problem contain development files, downloaded archives, temporary extraction folders, and applications that are frequently updated, so excluding entire locations could potentially create an unnecessary protection gap. I would much rather identify whether a particular scanning mechanism, behavior-monitoring feature, or file-access interaction is responsible and then determine whether a narrowly targeted configuration change is appropriate. I am also curious whether AVG has any diagnostic logs that would show when a file scan is taking an unusually long time or when a process is waiting for a security inspection to complete. If there is a recommended way to reproduce this type of problem while collecting AVG logs, Windows Event Viewer information, or performance data, I would be happy to provide those details. I can also compare the behavior using different types of file operations, such as copying versus extracting, to determine whether the problem is specifically associated with file creation, modification, or repeated access. Having a clear diagnostic method would be much more useful to me than simply changing multiple settings at once because I want to identify the actual cause rather than accidentally masking the symptom.
At this point, the main question I have is whether AVG real-time protection is expected to introduce noticeable delays when an application rapidly accesses thousands of files, and if so, what the recommended configuration is for handling legitimate high-volume file operations without compromising protection. I would especially appreciate guidance on which AVG settings should be checked first and whether there is a built-in troubleshooting or repair procedure that can determine whether the installation or one of its protection modules is behaving incorrectly. I am also interested in knowing whether other users have experienced applications becoming temporarily unresponsive during large file extraction or copying operations while AVG is running. If this is a known interaction, I would like to know whether it is generally resolved through an AVG update, Windows update, configuration adjustment, or application-specific compatibility setting. If it is not expected behavior, I would like to collect enough technical information to determine whether my installation has become corrupted or whether another component is causing AVG to spend excessive time inspecting files. My goal is not simply to make the operation faster by disabling security features; I want to keep AVG’s normal protection enabled while preventing legitimate file-intensive applications from repeatedly freezing during routine work.
I would therefore appreciate any suggestions for systematically diagnosing this problem. Ideally, I would like to know which AVG logs or diagnostic reports I should collect, which Windows performance counters might be useful, and whether there is a recommended sequence for testing the different protection components without leaving the computer unprotected for an extended period. I can provide my Windows version, AVG product edition, installed AVG component versions, storage type, application involved, approximate number of files being processed, and timestamps from when the freezes occur if those details would help with troubleshooting. I can also test the same operation with a clean temporary folder and compare the results with a folder containing an established project or application dataset. The most important thing for me is finding out why the application becomes unresponsive only during intensive file activity and whether AVG is actually waiting on or scanning those files at the time of the freeze. If there is a recommended diagnostic procedure used by AVG support or experienced community members for separating antivirus scanning delays from storage, Windows, or application-level problems, I would be grateful for the steps. I would prefer to solve the underlying compatibility or performance issue while keeping real-time protection active rather than relying on permanent exclusions or disabling AVG whenever I need to work with a large number of files. Very sorry for long post!