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techwiki:winrecovery [2016/10/20 01:17] (current)
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 +====== Windows data recovery and file recovery ======
 +
 +Important notice:
 +
 +  - once found data lost, DO NOT do anything to the Computer or Harddisk, any Writing or Use operation can render data recovery impossible.
 +    * 数据丢失,务必谨记的是不要对丢失数据所在分区进行操作,因为新的数据很可能覆盖丢失数据
 +  - Never store important Data on C drive (or OS drive) if possible
 +    * 重要数据不要放置到系统分区,因为系统分区的数据读写是最频繁的,​非系统盘数据恢复起来比较容易和完整 ​
 +  - Never count on Data Recovery, best practise to protect data is making mutiple copies of backup on your portable usb drive, DVD, or online storage Before bad thing happens.
 +    * 数据恢复仅仅是尽可能地还原数据,​对于重要的数据,日常还是要备份多几份为妙  ​
 +
 +===== free recovery tools =====
 +
 +  - Recuva - http://​www.piriform.com/​recuva/​download
 +  - FreeUndelete - http://​www.officerecovery.com/​index.htm#​freeundelete
 +  - iCare unDelete Free - http://​www.icare-recovery.com/​undelete-free.html
 +
 +
 +====== Windows problem before Login ======
 +
 +===== User profile load fail =====
 +
 +  - Start the computer and press F8 key immediately.
 +  - In the "​Advanced Boot Options"​ window, select "Safe Mode" and then press "​Enter"​
 +  - Login to your account.
 +  - Click Start
 +  - In Start Search box, type "​regedit",​ and press "​Enter"​.
 +  - In Registry Editor window, navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList
 +  - In the left pane, look for the folder name starting with S-1-5 (SID key) followed by a long number, then click the folder and locate ProfileImagePath from the right pane to verify that this is the user account profile that has the error.
 +  - If you have two folders starting with S-1-5 followed by same long numbers and one of them ends in .bak
 +  - Change the .bak folder to normal one. To do this:
 +  - Right click the folder without .bak and choose "​Rename"​. Then add .ba at the end of the folder name.
 +  - Right click the folder with .bak and choose "​Rename"​. Then remove "​.bak"​ at the end of the folder name.
 +  - Right click the folder with .ba and choose "​Rename"​. Then change the .ba to .bak at the end of the folder name.
 +  - Choose the folder without .bak
 +  - In the right pane, right click on RefCount and then select "​Modify"​
 +  - Under "Value Data", type 0 and then click OK.
 +  - Right click on State and then select "​Modify"​
 +  - Under "Value Data", type 0 and then click OK.
 +  - Close Registry Editor window.
 +  - Restart the computer in normal mode.
 +  - Log on to your account again.
 +