C T Johnson

Instrumentation & Controls:

Engineering, Design, Software & Services

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  Computer service & repair

Charlotte, NC area

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Bring to our shop in Charlotte, NC  

 home computers from DOS to System 10 & Linux Ubuntu    &  Mint    is our specialty



This Page was Updated  4/10/2018


Remember   it's handy to use security tools that do the job quickly and simply.
One tip I've learned: before running any antispyware or antivirus apps, clean out temp files to make your subsequent scans faster.

Whether you're cleaning the machine for a friend or family 


Free Temp File Cleaner

  • It requires Java to run.
  • The utility's aggressive default settings delete patch-uninstall files and system-restore points. Deleting these files won't break anything but will prevent you from uninstalling the patches or going back to those restore points. If these settings concern you, you can turn them off in the program's options.

We will build custom computers

and provide Hard drive recovery



email your special needs to us