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It's hard enough dealing with computers. That's why we've made dealing with us so easy. Give us a call and we'll come to your home, office or school and take care of all your computer-related problems quickly and professionally. We even accept drop-offs if it's easier for you. We work fast, efficiently, and are priced not only to be competitive, but to maintain life-long relationships with our clients.

We're not rookies when it comes to computer consulting. Over the years we've built a solid reputation as some of Westchester's most experienced and reliable computer help experts.
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Mister Computer is a Westchester County-based computer consulting company tirelessly dedicated to taking the hassle out of dealing with computers - from fixing minor hardware and software problems, recovering lost data, and removing spyware, to complete overhauls of corporate networks, databases, and more.
Reviews (9)
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Serge Marquie
Apr 26, 2022
Always available with the correct answers, transforming our computer schlep into a walk in the park for the past 15 years!
Herbert Kaufmann
Apr 01, 2020
Always available, by phone, remotely or in person. Very knowledgeable about all aspects of computers and their problems and strong on safety. Has a monthly newsletter that has lots of useful information. Can't recommend him highly enough.
William Martone
Nov 01, 2019
I have known and worked with Ish for 25 years. He is very competent and always works in his client's best interest. I highly recommend him.
Phyllis Wilson
May 20, 2019
I highly recommend Ish. He is always available to fix the problems immediately. No problem is too difficult for him. He explains why the problem arose and how to avoid it in the future. He also follows-up to make sure that everything is fixed.
Shoshannah Zimmerman
Feb 07, 2019
I have known Mr Computer for probably close to 14 years. What is most important to me is having someone that I text or call and he makes himself available in a timely manner. The delay is what causes anxiety and this is NEVER an issue with Ish Alter. He has always responded to me, no matter what the hour. He is current with technology and if there is any question, he immediately consults his database in problem solving.

Trust is an essential asset and I never have to worry when I turn my computer over to him. I also have no concerns that my information has been compromised as his methods are time tested and I have never had to face the repercussions of being hacked. I like to receive his newsletter with up to date information for which I have learned quite a bit over the years. His price is also fair. Only issue for me is that when I am stressed, I like a person with a softer interpersonal style. One can't have everything :
Cathy Cohn
May 07, 2018
Ish is a true professional! He has been taking care of my computer issues for a few years. He is extremely responsive when I need his help, and most proficient at resolving my computer issues and questions. I would highly recommend him.
Dahlia Japhet
Feb 09, 2017
I have used Mr. Computer for over 10 years and on multiple occasions. He has fixed problems with my computer and the software on which it runs. He has also removed malware. He has never failed me, and has been completely reliable. He is very personable and gets right to the issues. His intuition is excellent and he immediately comprehends software programs.
Joe De Paolo
Nov 20, 2016
Ish has been servicing our computers for about 7 years now. My wife and I are always satisfied with the work Ish does. He is masterful behind the computer. My wife and I joke that Ish is actually a computer dressed in skin. There has never been a problem that Ish could not fix for us. If we ever have an issue with our computer Ish is always right there for a quick fix. He is kind, considerate and always on time. Joe Mahopac, NY
David Stienroth
Jul 21, 2009
Ok service they perfomed a clean install on OS (Dell). Had my PC back in three days.