Member Avatar for jsantos954

my computer has been running slow and iexplore.exe is close to 100%
at times, especially when changing pages, when cpu usuage is near 100% i get spikes in networking usuage. how can i fix this problem? any help appreciated

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Thread shows iexplore.exe pegged near 100% CPU with matching network spikes. 's affinity trick and 's reset are useful quick fixes, but they don't identify the root cause. The next step is process- and network-level diagnosis so the real offender can be found and removed.

Resource Monitor reveals which process is actually sending/receiving data (Network tab: "Processes with Network Activity" and "TCP Connections"). Resource Monitor also shows remote addresses and bytes/sec, which helps tell whether IE itself is doing heavy I/O or another helper process is. See Microsoft documentation for details: .

If iexplore.exe is the source of both CPU and network load, inspect the process threads and loaded modules with Process Explorer to find the DLL or thread stack responsible. Thread stacks often point to a specific add-on, plugin, or security hook rather than the browser core. Process Explorer (Sysinternals) is designed for this kind of inspection: Process Explorer. Launching IE in No Add-ons mode (iexplore -extoff) or selectively disabling add-ons from Manage Add-ons isolates the offending extension without doing a full reset.

Complementary checks: run an up-to-date anti‑malware scan (Defender/Malwarebytes) to rule out infection; perform a clean boot to see whether a background service or updater is involved; update the NIC driver and review adapter offload settings if huge transfers are involved. Because Internet Explorer has been retired, moving to a maintained browser is also recommended for stability and security: .

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Member Avatar for CelestialDog

If your using a multi-core processor you can try setting the affinity for Internet Explorer so it only uses one core instead of all of them. To set the affinity for any application start up task manager, right click on the app and select Go To Process.

Right click on the process and select Set Affinity. A dialogue box will appear giving you the option to select which cpu (which core) to use for that particular application.

I had a similar problem with an older version of Dreamweaver on my system and doing this sorted it for me, so give it a try and see if t helps.

Member Avatar for donkey_pasta

You could perform an Internet Explorer reset. In Internet Explorer go to >Tools >Internet Options >Advanced tab >Reset >Reset

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