System Mechanic Ultimate Defense dashboard

New System Mechanic® Ultimate Defense™

All-in-one online privacy, password manager, antivirus, and pc cleaner

More than your average PC tune-up software. Speed up, secure, and simplify your digital life with iolo’s all-in-one Windows® optimization, antivirus, and online privacy software suite. Learn More.

iolo helps you protect your whole digital life - including the ability to remove your personal information from the data brokers that collect and sell it. Want to go further? Our step-by-step guide shows you how to delete yourself from the internet and keep it that way.

PC Mag Editors' Choice 8 Time Winner
Trustpilot

TrustScore 4.0 3,916 reviews

4.2
4.5
4.7

System Mechanic®

Performance Improvement:

Faster Startup

Faster Downloads

Improved CPU Speed

Improved Graphics

Improved Drive

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8 Time-WinneR

PC Magazine – Editors’ Choice

“System Mechanic’s evolution from tune-up utility to an all-around PC enhancer is one that you shouldn’t overlook. Plus, you get unlimited licenses, which can go a long way to justifying the cost if you have a lot of PCs in your household.”

PC Magazine Editors' Choice
Guy holding laptop with grey iolo background

Get more out of your PC

  • Faster Processor

    Unparks 100% of processor cores and revs them to maximum clock speed when you begin a system-taxing gaming, programming, graphic design or multimedia task.

  • Unleashes Internet Speed

    Greatly improves a whole cache of under-performing Windows Internet settings hidden to most users, for the very smoothest streaming, gaming or browsing available through your network.

  • Increases Drive Speed

    Stores data to hard disk in contiguous batches, over time preventing hundreds of thousands of file fragments and making the read/write process much faster.

You’re in Good Hands

Millions of people around the world have already made System Mechanic the place to fix their PC Problems. Read our Press Reviews.

“System Mechanic is a slick suite of tune-up tools that can dramatically improve your PC’s performance.”

“System Mechanic is a quick, simple way to clear unwanted files from your PC and give it a noticeable performance boost.”

“System Mechanic is a simple way to give your PC a basic clean-up, and its detailed scans and scheduling options are a cut above many rival programs.”

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Our Customers Love Us

Verified Reviews
4.8
9223 reviews

I thought that I was in an impossible situation -- I'm 86 and am not even in the least tech savvy -- I'm honestly amazed at the proficiency and willingness to solve my problem -- THANK YOU

Sep 19, 2026

It was difficult to reach a live person I tried multiple times but once I did, he fixed all the problems.

Sep 18, 2026

I needed to find a document and connect my printer. My technician did both quicker than I could have imagined

Sep 17, 2026

Some pop ups appeared on my screen (Trojan ....was found) and to run Mcffee to etc.) I called tech support, and as always, was assisted within a short time frame to get rid of this. I can ALWAYS depend on iolo.com technical assistance. I have utilized their services for many years.

Sep 14, 2026

After 4 days of frustration I finally called Tech Support. What a blessing. The tech was patient, caring, professional, and wala, the problem was explained, tested, and fixed. I now understand the process. Thank you so much.

Sep 13, 2026

Anytime I have an issue with my computer, I have called iolo.com for years and always found the exact help I needed.

Sep 12, 2026

After being on hold 3 time totalling about 3 hours I finally got tech support. The wait was agonizing. The tech support was great. He solved my issue very quickly and let me write how to do what I needed so I can do it on my own next time.

Sep 11, 2026

All excellent. I did have to wait a long time for the technician to become available. Worth the wait...but you may want to look into increasing staffing tech staffing levels at certain times.

Sep 10, 2026

all were professional, personable, and patient with me. I am over 80 years old. Problems were solved and service provided with courtesy

Sep 10, 2026

passwords that I saved would be deleted by System mechanic the next time it ran. Your tech joined a session with me and unchecked items to prevent further deletions

Sep 10, 2026

My email had been scammed and it was fixed also a couple of items were on that I had not ordered and were removd.

Sep 9, 2026

your tech was able to show me how to recover my bookmarks but the passwords that were stored did not return. Luckily I have them all written down so I would bring them all back.

Sep 7, 2026

The support team is very helpful. I had some problems understanding them but that is 90% a problem I have with the type of issues that were being processed. Thank you for your help.

Sep 7, 2026

My Tech was extremely professional and very helpful. He took the time to show me what he was doing and why he was doing it. Thank you so much!

Sep 2, 2026

The technician was very professional and dedicated to complete his willingness to solve the issues that were giving me error codes that i wasn`t aware of

Sep 2, 2026

He was very kind, patient, and knowledgeable. He took the time to explain everything to me in a way I could understand and made sure I knew what was going on and what I needed to know. I truly appreciate his help and kindness. Thank you so much!

Aug 30, 2026

The technician is very knowlegement have good problem solving skills to diagnose and fix the printer andMicrosoft system issues. Thank you.

Aug 29, 2026

The first Tech took about a hour, then was transfered to a second, then to a third, the final one was about 20 minutes and was able to fet me up and going

Aug 28, 2026

The technician knew exactly what was needed and performed the needed action. He also showed me how/where the problem originated from and how to resolve it along with other actions that I might want to take.

Aug 27, 2026

Second tech did a great job. The first tech spent too much time trying to sell me more products. Don't want to worry about new products when I'm worried about getting my current problem fixed.

Aug 25, 2026

The technical representative was able to fix the problem quickly and advised me how to keep it from happening again.

Aug 25, 2026

My ticket number was 1956361. Your technician was superb. He resolved the two major problems I was having in a reasonable amount of time. Well done and thanks!

Aug 21, 2026

Frustrating when calls back from support team went straight to voicemail on my phone instead of ringing so I could answer. Otherwise, the support team was extremely helpful and seemed to be very knowledgeable.

Aug 21, 2026

Some Malware infected my computer. It had deleted info from my computer. He was able to restore it for me. It was not a simple fix. I appreciate his help beyond saying.

Aug 20, 2026

He helped me install and update my "get my drivers" though I do not know why it was not working or not updated. Anyway he say it is now updated He helped e also answer some questions I had and demonstrated the answers on the computer..

Aug 20, 2026

The iolo support team was as helpful as they could be; their attempts were thwarted by Microsoft's failure to provide a required file (.dll) in the latest compatible version of MS Visual C++ to enable Windows 7 to use the iolo VPN. My VPN had to be deleted.

Aug 20, 2026

Initial person explained options to reduce my costs for services. Second person demonstrated a good body of knowledge of computer issues and was able tohelp me.

Aug 19, 2026

I ended up with 3 It guys as the server had an issue and then we got disconnected but in the end the last IT person checked a lot of apps it seems I am now going to enjoy a computer working like new. Thanks team

Aug 15, 2026

The support team was very professional, patient, conversational in quickly identifying the root cause of the issue. They answered any questions I had about my concerns with what caused the issue.

Aug 14, 2026

DIDN'T KNOW A SSD HD DISK DOES NOT NEED DEFRAGING...SUGGESTED IT BE INDICATED AS A WARNING TO THOSE LOOKING TO DEFRAG THEIR HARD DISKS THAT ARE SSD HARD DISKS ....I HAVE SYSTEM MECHANIC ULTIMATE DEFENSE (THROUGH AOL). PROVIDE A NOTICE IN THE DEEPCLEAN ... "NOT NEEDED FOR SSD HD"

Aug 13, 2026

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