Since I wrote the original avgidseh.sys fix article, there have been lots of other affected PCs that have passed through our workshop. This is not a rogue update fault now as it was back in late 2010, rather an issue that is, as yet, untrackable to a single problem. AVG are getting the blame for many bad startup errors as the users only see the last driver to load which is often AVGIDSEH.SYS. I have, however, noted that applying an AVG-specific fix works in many cases.
To resolve issues that are AVG related, follow the steps below.
Boot your PC with a boot CD. I recommend UBCD4WIN which is an excellent tool to have in your armoury for PC repair. Download the program and install onto your computer. Build an image from your Windows XP CD (required). If you don’t have a Windows XP disc then you can download the AVG boot disc from here. Please make reference to my original avgidseh.sys fix article for creation and method. Use my updated folder renaming fix listed below in both cases.
What we shall be doing is renaming the AVG folders so they are not loaded on startup. For UBCD4Win, start the computer with the disc inserted and boot from it. This may involve changing the boot order that your PC or laptop uses. Once we have a new ‘environment’ – that is the computer is running from the CD – then we can start a file explorer such as A43, Agent Ransack, Xplorer2 or Free Commander. This will give us access to the files on the hard drive. Folders to rename are as follows:
Windows XP and 2000 (Note: Later AVG versions do not run on Windows 2000 so forget a reinstall afterwards!)
- C:\Program Files\AVG – This is also named C:\Program files(x86)\AVG when you have a 64bit operating system
- C:\Documents and settings\All users\Application data\AVG8
- C:\Documents and settings\All users\Application data\AVG9
- C:\Documents and settings\All users\Application data\AVG10
Windows Vista, 7, 8 and 10
- C:\Program Files\AVG – This is also named C:\Program files(x86)\AVG when you have a 64bit operating system
- C:\ProgramData\AVG8
- C:\ProgramData\AVG9
- C:\ProgramData\AVG10
- C:\Users\<user>\AppData\Roaming\AVG8
- C:\Users\<user>\AppData\Roaming\AVG9
- C:\Users\<user>\AppData\Roaming\AVG10
Example:
rename C:\Program Files\AVG to C:\Program Files\OLDAVG
Once renamed, they will no longer load on startup.
Avgidseh.sys is not the only possible cause…
Now I like to run a CHKDSK while still in this ‘running from cd’ environment as it fixes any errors on the hard drive. These are often caused by the PC being shut down while writing to the drive and can also be the main reason the computer failed to start, don’t always blame AVG because the avgidseh.sys driver was the last thing to load! In UBCD4Win we would run Disk Check which does a full scan and repair of the sectors on the hard drive. Just fire it up, tell it your target drive (usually c:) and let it run. Have a cuppa as this takes a while.
The professional method
If you want to do a complete scan and repair of your disk using a professional repair tool that we use in our workshop and lab, you should investigate HDD Regenerator. We have carried out a full review of HDD Regenerator here. It has fixed the majority of the faulty drives we see that cause constant ‘looping’ of the Windows boot procedure and it’s in daily use in our workshop. It’s not too expensive and is a better solution than the free methods we list above for many people as it is much easier to use. It also blows CHKDSK into the weeds for being able to recover data and salvage your hard drive. Where CHKDSK marks the sector as bad, HDDRegenerator actually recovers the data from it and moves it to a new, good sector. As mentioned, this tool isn’t free (it does give you a free trial) but you can buy it once and fix as many drives as you want with it. It also creates a simple to use bootable USB drive or CD/DVD disk for you. Any self-respecting PC geek or computer repair shop shouldn’t be without it in the toolkit.
As mentioned in other articles, despite AVG being a capable free antivirus, I heartily recommend the brilliant Kaspersky Pure as a set and forget internet security solution. Here is my method to get the cheapest Kaspersky Total Security and be fully protected against viruses and malware.
Finally, let me know by commenting below if this avgidseh.sys fix works for you and please leave any other information you can share with the community.