Investigating High CPU Issues:Windows Task Manager
does not provide enough information. These are tools to investigate running processes, services and gather additional information to identify them or resolve problems:
These tools will provide information about each process, CPU usage, file description and its path location
Most of them are stand-alone apps in a zip file so no installation is necessary.
-- System Explorer
provides a security check
of running processing using their online security database when you first launch the program. Just press the Security Scan
tab at the top, then click Start Security Check
. After the check you can click the link to See the results of the security check >>
. Keep in mind, that the check is not a guarantee of what is or is not detected as malware.
-- Process Explorer
shows two panes by default: the upper pane
is always a process list and the bottom pane
either shows the list of DLLs loaded into the process selected in the upper pane, or the list of operating system resource handles (files, Registry keys, synchronization objects) the process has open. In the menu at the top select View > Lower Pane View to change between DLLs and Handles.
to complete an anti-virus or anti-malware scan depends
on a variety of factors
-- Using two security scanning engines at the same time can cause each to interfere with the other, cause systems hangs, false detections, unreliable results and other unpredictable behavior.
- The program itself and how its scanning engine is designed to scan: using a signature database vs heuristic scanning or a combination of both.
- Options to scan for spyware, adware, riskware and potentially unwanted programs (PUPS).
- Options to scan memory, boot sectors, registry and alternate data streams (ADS).
- Type of scan performed: Deep, Quick or Custom scanning.
- What action has to be performed when malware is detected.
- A computer's hard drive size.
- Disk used capacity (number of files to include temporary files) that have to be scanned.
- Types of files (.exe, .dll, .sys, .cab, archived, compressed, packed, email, etc) that are scanned.
- Whether external drives are included in the scan.
- Competition for and utilization of system resources by the scanner.
- Other running processes and programs in the background.
- Interference from malware.
- Interference from the user.
-- If the screensaver, hibernation or Sleep Mode are not turned off before scanning, those features can sometimes have odd effects when attempting to resume normal mode.
Further, it is not unusual for an anti-virus or anti-malware scanner to be suspicious of compressed
, and packed
files because they have difficulty reading what is inside them. These kind of files often trigger alerts by security software using heuristic detection
because they are resistant to scanning (difficult to read). This resistance may also result in some scanners to stall (hang) on these particular types of files or just ignore (skip) them. Certain files in the System Volume Information Folder
like the Tracking.log (created by the Distributed Link Tracking Service to store maintenance information) have also been reported as a source causing some scanners to hang.
To speed up your scans, uninstall unnecessary programs, clean out the temporary files
, temporarily disable any other real-time protection tools
, close all open programs and do not use
the computer during the scan. If the scan still seems slow or hangs, then try performing the scan in "safe mode
Edited by quietman7, 21 September 2011 - 01:37 PM.