# Tech guys. A little help...

**URL:** https://forums.speedlife.net/t/tech-guys-a-little-help/247749
**Category:** Shift518 Off Topic
**Created:** [October 21, 2009, 8:16am UTC](https://forums.speedlife.net/t/tech-guys-a-little-help/247749 "2009-10-21T08:16:59Z")
**Posts on this page:** 1
**Showing post:** 19

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### Author: ![crAppAchic0](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/crappachic0/32/6306_2.png) [@crAppAchic0](https://forums.speedlife.net/u/crAppAchic0)
#### Post date: [October 21, 2009, 2:20pm UTC](https://forums.speedlife.net/t/tech-guys-a-little-help/247749/19 "2009-10-21T14:20:30Z")

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> [@If you are sitting next to someone who irritates you on a plane or train..](https://forums.speedlife.net/t/if-you-are-sitting-next-to-someone-who-irritates-you-on-a-plane-or-train/24749/2):
>
> 99FRC, if you’re worried about possible system files issues…put in your OS CD (probably XP?) and run _sfc /scannow_ from the command prompt. This will replace any corrupt/fishy DLL’s and SYS files.
> 
> And Shady’s advice was fine. I also reformat when it gets to a certain time point. Not worth charging the user more and more. I don’t work that way. I’m honest and try to give them the best bang for the buck.

‘sfc’ will replace the files with the original versions from the disc you’re running- i.e., if you’ve installed SP2 or whatever, the files replaced in the SP install will be replaced by whatever file versions are on the disc sfc is referencing… we’ve run into that a time or two.

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