How to remove an isapnp error

Isapnp.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the OS, hardware etc.
The free file information forum can help you determine if isapnp.sys belonging to the Windows system or an application you can trust.

Run a free scan to check for isapnp drivers in need of updating

Isapnp.sys file information

The process known as PNP ISA Bus Driver or PnP ISA/EISA Bus Driver belongs to software Microsoft Windows Operating System by Microsoft (www.microsoft.com).

Description: The file isapnp.sys is located in the folder C:\Windows\System32\drivers. Known file sizes on Windows 7/XP are 35,840 bytes (60% of all occurrences), 36,224 bytes and 6 more variants.
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. The service has no detailed description. File isapnp.sys is a Microsoft signed file. isapnp.sys seems to be a compressed file. Therefore the technical security rating is 2% dangerous, however also read the users reviews.

Recommended: Identify isapnp.sys related errors

Important: Some malware camouflages itself as isapnp.sys, particularly when located in the c:\windows or c:\windows\system32 folder. Therefore, you should check the isapnp.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.

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User Comments

had 512Mb of Memory in 2 256Mb blocks. Removed 1 of them and started the PC, the PC shows this error when both blocks are in, but works when only 1 block is in.
Ogre

isapnp.sys is a device driver that manages plug-and-play for old ISA type expansion slots.
Redcloud

isapnp.sys error often shows up when ram is corrupted. Find the damaged ram and swap it out
ManicParroT

I agree with Ogre 100% I experianced the same thing $& remove one of these slots and there you go , The system has started again. Thanks Ogre
Mohammad, Saudi Arabia

It may not be essential for newer computers, but it is installed as a standard Windows file. If it is corrupt, it will cause startup to fail. Solution: Microsoft says replace it from the Windows install CD. Will the system start without it? Probably not, unless the registry is changed to allow it to be ignored.
Lance in Shanghai (further information)

I agree it's essential to windows, causing mostly boot problems if damaged, but i don't think its connected to RAM, but ISA plug'n'play expansion slots
Rattlesnake!

Rootkit.Win32.TDSS.d was in it
Bill

yes if it is preventing from booting, or reinstalling windows, then it is a hardware issue. From my experience, one of your ram memory is bad. remove all of your ram memory, and restart your system with one stick only. repeat with one stick until you can single out which is the bad memory stick.
nerdio

вовва

The error occurs due to a corrupted RAM. just try replacing it
Michael (further information)

Summary: Average user rating of isapnp.sys: based on 9 votes with 10 reviews.

4 users think isapnp.sys is essential for Windows or an installed application. 3 users think it's probably harmless. 1 user think it's neither essential nor dangerous. 1 user think isapnp.sys is dangerous and recommend removing it. 3 users doesn't grade isapnp.sys ("not sure about it").

Isapnp scanner

Security Task Manager shows all running Windows tasks including embedded hidden functions (e.g. keyboard or browser monitoring, autostart entry). A unique security risk rating indicates the likelihood of the process being potential spyware, malware, keylogger or a Trojan.

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