In-place upgrade WinXP crash?

In-place upgrades may be a strange concept for many people, but I believe everyone knows about the installation. In the case of serious problems with Windows 98, when you need to reinstall the system, in order to avoid formatting and destroying the software and data already installed in the system, we usually use the method of directly overwriting the installation.

In fact, Windows XP also has a similar cover installation feature, which is called in-place upgrade, also known as a repair installation, the same case can reinstall the system without losing existing data systems to address the many serious System problem.

a method of in situ upgrading and examples

Windows XP in-place upgrade coverage than using Windows 98 installation will take some work, let's look at how to do this through an example.

Symptom: a rookie friends called and said Windows XP system will not boot up, hurried, just started to find each scroll bar interface automatically restart, ask the details, saying it was install uninstall yesterday A lot of software, there has been no restart in the middle. This phenomenon has appeared on the boot today. The inference may be due to the destruction of the system when installing and uninstalling the software. The last time the correct configuration failed to start properly, the safe mode could not be entered. It seems that only the system is reinstalled.

But friends say the system partition to back up important data yet, so he tried it in-place upgrade, very successfully solved the problem.

specific steps: First, use the Windows XP installation disc to start the computer, follow the prompts to press the "Enter" key to start the installation of Windows XP, and then press F8 to accept the agreement to install, then the installer detects that the system has been installed Windows XP, and give a prompt, then press R to choose to repair the installation, the rest of the steps are exactly the same as the normal installation of Windows XP. However, please note that after you upgrade your Windows XP with an in-place upgrade, you need to reactivate Windows XP.

If your computer is equipped with dual system, you can also upgrade to Windows XP situ in other operating systems capable of normal use, the method is to install Windows XP CD into the drive, in the "Welcome to Windows In the "Installer" interface, click the "Installation Type" drop-down box to select the "Upgrade (Recommended)" option, and then click the "Next" button to continue the normal installation.

Second, the in-place upgrade for treatment of "cases"

in-place upgrade is not a "cure-all", it has a suitable application, in addition to the examples we saw above, If you encounter these following issues can be resolved by in-place upgrade:

★ can not start Windows XP in safe mode problems.

★ updated by the system recently installed (Windows Update, hotfix, Windows XP Service Pack or Microsoft Internet Explorer update). Moreover, we can not resolve this problem in any other way. The most typical case is that some users have used the cracked version of Windows XP and cannot be used after automatic update.

★ by using other tools (such as "System Restore") does not resolve registry problems. Some properties change

★ file system, and we want to revert back to the original state, Windows XP system applications need to install the default (file and registry) permissions.

★ need to use the Windows Installer to find the Plug and Play device again.

Third, the in-place upgrade Notes
Windows XP installation when installed in situ as Windows does not cover what 98 can be, it will be a lot of changes to the system, so the installation in situ Previously, we had to determine if we should use in-situ installation.

1. If your Windows XP is a brand of pre-installed, and there is "Undo_guimode.txt" WindowsSystem32 file folder, then the missing Start menu shortcuts may appear when using the in-place upgrade installation To start group data and share document data, you need to delete the "Undo_guimode.txt" file before performing the in-place upgrade to avoid data loss.

2. After installing the upgrade in situ repair Windows XP, although applications without reloading, but many system settings are restored to the default state, such as System Restore automatically open the login interface has also been changed By default, you need to re-personalize. After

3. place upgrade installation, use Windows Update to play all the patches will be lost, and therefore need to update online.

4. If your computer is also equipped with Windows 2003, after using the in-place upgrade to repair Windows XP, Windows 2003 will lead to inaccessible fix is ​​to install the 2003 "ntldr under the i386 directory of the Windows CD-ROM Copy the "Ntdetect.com" file to C: and overwrite the original file.

5. After using in-place upgrade to repair Windows XP, if found that the system is running significantly slower, you can look in the Device Manager, hard disks and optical operation mode is set at "only PIO" mode, If this is the case, you need to extract the "Atapi.sys" file in Windows XP SP2 Beta (version number 5.1.2600.2055), replace the original file in the system, and open the registry editor, find [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass{ 4D36E96A-E325-11CE-BFC1-08002BE10318}