My computer becomes extremely sluggish whenever I download something or try to run a larger game. I already suspect that I need more RAM, but I'm not sure whether that's the only problem. I currently use Norton and regularly scan for viruses and system issues. I've included Task Manager screenshots and a download in progress, but I'm not sure whether the number of background processes is normal. What information or additional screenshots would help identify the cause?
4 Answers
Please provide the full PC specifications before replacing anything: CPU, graphics card, total RAM, storage type and capacity, and the games that cause the slowdown. Also check Task Manager while the problem is happening and look at the CPU, memory, disk, and network percentages. The component that stays near 100% will usually point to the bottleneck.
The number of background processes by itself is not necessarily abnormal—Windows and installed applications can create many of them. The screenshots showing individual processes don’t reveal enough without the total RAM or the CPU and disk graphs. Check how much free space remains on the system drive too, because a nearly full drive can hurt performance, particularly if it’s an older HDD.
Norton may be contributing, especially if it scans every file while Steam or another launcher is downloading and extracting data. Windows Security is generally sufficient for typical use, so you could uninstall Norton and test the same download again using the built-in protection. Don’t just disable antivirus protection permanently; compare performance after removing the extra security suite and restarting.
The biggest issue visible from the screenshots is that your memory usage is around 80% or higher, with Edge using roughly 1 GB by itself. If the system only has 4 GB of RAM, upgrading to 8 GB should help a lot; 16 GB is a better target for modern games and general use. We’d also need to know whether Windows is installed on an HDD or SSD, since an older hard drive can make downloads and multitasking feel painfully slow.
The percentage alone isn’t enough to diagnose it—we need the total installed RAM. Eighty-three percent of 4 GB is a serious limitation, while the same percentage of 16 GB is much less concerning.

Third-party antivirus isn’t automatically the cause, but it can consume noticeable CPU, memory, and disk resources. The comparison test is more useful than assuming it’s responsible.