Home Forums Tech Helproom SP1 update Forum Rules | Contact Forum Editor | Report a Post Pages 1 2 >> Next… SP1 update Bald Eagle 22:27 31 Dec 2003 Locked When trying to download, the download gets as far as a "download manager" 1.9MB. I then got the message:-Service could not verify the integrity of the file Update.inf. Make sure the Cryptographic service is running on this computer. What do I do? Giggle n' Bits 22:36 31 Dec 2003 As you have not stated that is my guess and all I could suggest is buying XP Home legally. powerless 22:49 31 Dec 2003 Click Start, Run, Type:net start cryptsvcClick OK.Now try to do the update again.If it fails, click Start, Run, Type:services.msc Click OK.Find: Cryptographic Services Right click and chose properties. Set the Startup type to: AutomaticClick ok and restart.Try the update again.I that fails find a folder in C:\WINDOWS\system32 named: catrootRename it to: oldcatrootTry updating again. Bald Eagle 07:57 01 Jan 2004 Audiochips,I can assure you it is a legal copy that belongs to me bought with my money. I do not like the inference you are making. I know enough about the expertise on this site to know that if my copy was "iffy" the various folk here would know straight away.To the others will try your suggestions, many thanks, but it may be a while before I can reply with the outcome. Bald Eagle 08:27 01 Jan 2004 Audiochip,I am even more upset with you having seen clayton's link. Apparently it is a well known error that has patches available and everything.Ray Stuartli 08:38 01 Jan 2004 Still no humble apology.... Bald Eagle 16:36 01 Jan 2004 On the site suggested by clayton a critical update Q817287 is suggested but I can't find it on the site. Where do I look to access it?I have tried Google but every site I try says go to the Microsoft site. Bald Eagle 16:39 01 Jan 2004 I should have said it says Q817287 is on the Microsoft site. hugh-265156 16:45 01 Jan 2004 click herejust click here click "scan for updates" and download all the critical ones and any of the others you feel applies to you.read Powerless post above and enable cryptographic services too. beeuuem 16:45 01 Jan 2004 You could look at "You are trying to install Windows XP Service Pack 1" in section 1 of click here which may be of help if none of the above have worked. hugh-265156 16:49 01 Jan 2004 ps.to find a knowledge base article just type the number(leave of the Q)into the "Search the Knowledge Base" box top left click here Pages 1 2 >> Next… This thread is now locked and can not be replied to.