Scanning Your System

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When using Windows Vista or later operating systems, it is recommended to run Dr.Web Scanner with administrative privileges. Otherwise, all folders and files (including system folders) that are not accessible to an unprivileged user will not be scanned.

To select the scan mode

1.Click the SpIDer Agent menu SpIDer Agent icon and select Scanner. The menu of quick access to different scan modes opens.

2.Click the Custom item to scan only selected objects. The Dr.Web Scanner window opens.

3.Click the Express or Full item to run the corresponding scan mode.

To launch Scanner with default settings to scan a certain file or folder, select Check with Dr.Web.

Configuring Dr.Web Scanner

To configure Dr.Web Scanner and its reactions to detected threats, go to Settings Protection Components Scanner.

Scan modes

Express scan

In this mode, Scanner checks the following:

Boot sectors of all disks

Random access memory

Boot disk root folder

Windows system folder

User documents folder (“My Documents”)

Temporary files

System restore points

Presence of rootkits (if the process is run with administrative privileges)


Scanner does not check archives and email files in this mode.

Full scan

In this mode, random access memory and all hard drives (including boot sectors of all disks) are scanned. Moreover, Scanner runs a check for rootkits.

Custom scan

In this mode, you can select objects to be scanned, for example, any files and folders and such objects as random access memory, boot sectors, and so on. To start scanning selected objects, click Start scanning. To select objects, click Add.

Scan process

When scanning starts, the Pause and Stop buttons become available. During scanning, you can do the following:

To pause scanning, click Pause. To resume scanning after pause, click Resume.

To stop scanning, click Stop.


The Pause button is not available while processes and RAM are scanned.