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.

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

Difficult problem of computer not booting. He tame through the reboot and repair process and then we had to take several other steps to locate the problem on an external drive which he repaired.

Nov 6, 2026

He was very polite and helpful, knew exactly what to do, took his time so i understood everything, on a scale of 1-10 he was above 10

Nov 5, 2026

The technician worked through the problem with me and was very helpful. Also, he found a remote access program that may have been hacking my PC.

Nov 3, 2026

I understood him completly and he understood my problem. He conferred with me during the session and I had total faith in him. I hope to get him again.

Nov 3, 2026

Used the Updater. Found 47 or 48 needing updated. Ran the updater. All but 4 were updated. Lost my wifi and adapters in the process. Really upset about that. I don't have the skills to effect repairs. Your team treated me very well. I've been using System Mechanic since November 2004.

Nov 2, 2026

Support needed was quick to fix my problem and the technician was knowledgeable. I spent minimal time trying to resolve issue.

Nov 2, 2026

For me being an old man with hearing and seeing problems you made me feel comfortable with our session. Thanks again !

Oct 31, 2026

T=Your tech was knowledgeable and efficient. The problem was resolved quickly and I was pleased with your service once again.

Oct 30, 2026

Quickly checked the problem (couldn't scan) and resolved the issue. Also checked to ensure that there were no malicious programs or applications attached to my system. Quick, efficient and effective. I always trust US Tech Support.

Oct 28, 2026

The support team took the time to clearly explain the benefits of Remove Me. I appreciate their patience and support.

Oct 23, 2026

After the chat the technician contacted me soon. Email was in spam, so I missed it first. But after contact, the problem was soon solved.

Oct 22, 2026

I was at a loss because my Program had just stopped. You Teh. Support, came through and erestored it for me very well. Thank You!!

Oct 22, 2026

I needed a computer cleanup. The technician took care of my issue and upon completion, explained to me what he had checked and fixed. Very professional and courteous.

Oct 21, 2026

I have been a Hellotec member for some time. I no longer want their service. So far I am very satisfied with the service

Oct 20, 2026

I spoke with two tech reps. They were very helpful and patience. They explained what they were doing and guided me through the process.

Oct 18, 2026

Both the customer service and support tech were very helpful. They got my problem solved quickly and efficiently. The explanations were easy to understand and was treated well. I am very satisfied with the service recieved.

Oct 15, 2026

the first lady that answered tried ot sell me some extra stuff that i didn't aporeciate. wasted my time. the actual tack support techneician was quick and helpful

Oct 15, 2026

I am still confused as to what I just bought and if it was completely safe. I sure hope so!

Oct 14, 2026

The tech (reference 2010023) was very thorough very pleased with the performance of my laptop, best its performed in some time

Oct 13, 2026

The team members that assisted me, were very professional and very kind and understanding, since I’m an old man, and very slow.

Oct 13, 2026

I am blessed to be a part of US Tech support, that helps our computer world organized and a joy to know that you are there!

Oct 13, 2026

Although the wait on the line to get a technician took a bit longer than anticipated, once he came on the line, he was able to quickly fix the problem. He was unusually able to understand, and everything is now working to my complete satisfaction.

Oct 12, 2026

The tech was very knowledgeable and very helpful they walked me step by step to what was needed and what he was doing to get my laptop back in good working order. I thank him and give him 100%

Oct 11, 2026

They were very helpful and I was happy that they did not have a accent that they were easy to understand and very patient with me.

Oct 11, 2026

The support team is great. But the first guy kept delaying getting to (as always) the tech by harassing me to by more. Even when I told him I'm retired and can't afford.

Oct 11, 2026

Helped with my questions concerning system mechanic auto checking / version update and multi-subscription notification I received. He did an online check for the program settings and was finished in 8 min total. Very satisfied.

Oct 10, 2026

I have always been very happy with the techs and have used System Mechanic for many years and will continue to use them. Thank you for excellent service thru the years.

Oct 10, 2026

Both technicians I worked with today were extremely helpful and willing to explain further if I didn't understand something which I really appreciate. They were also very helpful in answering all of my questions and there were many. Great job!!

Oct 5, 2026

It had me stumped and it took her a while to figure it out also to where it when over all very good.

Oct 5, 2026

They were very helpful in renewing my system mechanic and the live tech associate was very helpful in the installation and in ensuring my computer was free of virus and working well.

Oct 3, 2026

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