Shadow Defender for Windows

Used Shadow Defender for Windows?

Editors’ Review

Download.com staffSeptember 25, 2026

Shadow Defender offers robust Windows security by running your system in a virtual Shadow Mode. Revert unwanted changes instantly with a simple reboot.

Top Recommended Alternative

MaskVPN

Free

People describe it as light on system resources, saying it doesn't noticeably slow the machine down while active. The shadow-mode approach for safely testing changes and reverting on reboot is called simple and dependable, and several long-time users say it has never let them down.

What The Community Is Saying

The Highs

The Lows

Almost no criticism turns up in the discussion sampled. The one recurring point is that it costs money where a free alternative exists, which factors into some people's choice rather than reflecting a performance flaw.

The Verdict

A dependable pick for an easy, low-overhead way to test changes safely, though budget-conscious users may want to compare it against free alternatives.

Pros
- Protects against unknown and future viruses
- Effectively shields user privacy
- Eliminates system downtime
- Reduces PC maintenance costs
- Enables safe internet browsing
Cons
No Cons available

Shadow Defender for Windows

Used Shadow Defender for Windows?

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Full Specifications

GENERAL

Release: August 5, 2020

Latest update: September 25, 2026

Version: 1.5.0.726

OPERATING SYSTEMS

Platform: Windows

Operating System

Windows 2003
Windows Vista
Windows XP
Windows 8
Windows 10
Windows 7

Additional Requirements: None

POPULARITY

Total Downloads: 80,447

Downloads Last Week: 32

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Last Updated

User Reviews

4/5

23 User Votes

it looks like old returnil ! Many details are same.
nonexistFebruary 28, 2016
Pros
it looks like old returnil ! It was a virus.
Cons
it looks like security software but it was a virus.
Summary
it looks like old returnil ! They both has same attitude. Returnil alive for e few years until someone understood that virtualization program was a virus. I couldn't trust it.
It's can make your downloads disappear when rebooting
The_China_DoctorFebruary 9, 2013
Pros
It can be useful only, if you are expert enough to create a list of directories (or files) to be excluded from this software ability to keep your drive exactly as it was when you first booted it in the morning. This is called "EXCLUSION LIST" in this software protocol.
Cons
The big problem I foresee, for most inexperienced users, they will loose all their downloads of the day, if they have not deposited them in a directory identified in the so called "EXCLUSION LIST", they have to create when they first use this "Shadow Defender" --- This is what happened to 80% of the non professionals I've submitted this program for them to test it... they've lost all their downloads.
Summary
In short, , you will need a lot of patience when transferring downloaded files from their original directory where there are first deposited on your "C" drive, to your directory of choice identified in the "EXCLUSION LIST" --- For reasons related to the protective shield created by this software on your computer, it takes an eternity to copy from the download directory, to you directory of choice identified in the "EXCLUSION LIST".
Limited use for safe program installation
June 26, 2012
Pros
After Shadow Mode is enabled, all changes are lost after reboot.
Cons
It's not possible to retain changes when rebooting into Shadow Mode (unlike the WIN XP-only ShadowUser), so program installations which require a reboot, as many do, are not possible and therefore cannot be tested safely under Shadow Defender.
Summary
Amazing, simply amazing
portage022December 2, 2010
Pros
4,000K RAM Usage! Very light and allows for fast startup 100% protection against all malware SImply install, set exclusions, enter shadow mode and computer can never get infected
Cons
None at all
Summary
Excellent for $35. Highly recommended<br /><br /><span class='notifyMsg'> Updated </span>on Dec 2, 2010<p/>Very easy for novice users
Great security, however...
pvsurferSeptember 8, 2010
Pros
After trying most every variety of security app, this is truly the most secure that you can add to a Windows system. Nothing can penetrate Shadow Mode to get to your system (unless you want it to). Even better protection than ISR products!
Cons
Outside of user-support, there is none to be had from the developer, who has disappeared. The product now appears to be a dead-end and that is really too bad.
Summary
If you are already a registered user, continue to use and love it until it for as long as you can. If you are not a registered user, I would not buy into what now appears to be a dead-end product.
well worth the money
milkman222August 5, 2010
Pros
forget about Antivirus Protects OS completely
Cons
none at all. Ultimate protection
Summary
I highly recommend it
hanhnguyen413
hanhnguyen413July 9, 2010
Pros
good,strong
Cons
cheapest,beautyful
Summary
difficult for use, dowload
One of the best software to protect your PC!
jexpogiJuly 1, 2010
Pros
No need to worry about being infected by viruses and malware. No need to worry about other people messing up your Windows settings. Just a reboot restores everything to the way you left it. :-)
Cons
Has to reboot when exiting shadow mode. but its okay... :-/
Summary
With this I don't need to install anti-virus that i have to update on a daily basis and may compromise cpu resources and slow down my laptop. ='P
Very Good & easy to use
barryb4uJune 3, 2010
Pros
protect you from every virus or malware out there. Totaly safe web surfing.
Cons
Can't exit Shadow Mode without rebooting :(
Summary
A must have program even if you have Anti Virus or not . With Shadow Defender your computer is safe & virus free. ?
The Best of all
anmmahmudMarch 5, 2010
Pros
Can eliminate any virus after rebooting.
Cons
I have found none
Summary
I have tested other virtualization softwares (deep freeze) by using some nasty virus (safesys worm). All failed. Even rollback softwares (rollback rx, comodo time machine) failed. only shadow defender pass.

Developer’s Description

By shadowdefender

Keep your computer privacy and protect your data.