 O cung may tinh cua ban bi mat hay bi nhiem virus khien cho he dieu hanh Windows khong the khoi dong duoc. Vay ban da co cong cu nao giup ban co the lay lai du lieu mot cach nhanh chong chua hay giup ban tang toc o cung chua?
Khoi phuc don gian
Windows Recovery Console (WRC) trong Windows XP thuc su la mot cong cu rat an toan hieu qua va de su dung. Day la mot cong cu chay tren mot moi truong kha giong voi DOS, cho phep ban co the sao chep du lieu tep tin, sua chua nhung loi trong phan khoi dong (boot sector)… ma khong can phai khoi dong he dieu hanh. Lay vi du, neu Windows cua ban khong the khoi dong ban co the khoi dong WRC va su dung tinh nang sua chua loi khoi dong hoac dung lenh “fixmbr” voi hy vong se sua duoc moi loi phat sinh.
De khoi dong Recovery Console, ban hay dua dia CD cai dat Windows XP vao o CD roi khoi dong lai may tinh – chu y ban phai chac chan may tinh cua ban co the khoi dong tu o CD. Khi trinh cai dat Windows XP xuat hien ban hay bam phim R de khoi dong ung dung. Khi ban thay hien ra “Windows NT Boot Console Command Interpreter” thi hay bam phim so 1 hoac bat ky phim gi ma ban cai dat he dieu hanh cua ban goi y ra roi sau do bam phim Enter, nhap mat khau dang nhap Administrator.
WRC su dung nhieu lenh tuong tu nhu trong Command Prompt. Ban hoan toan co the su dung cac lenh nhu attrib, cd, copy, del, dir, exit, md, ren, rd, set, va type tuong tu nhu trong DOS.
Tuy nhien, Recovery Console vi muc dich bao mat nen thuong khong cho phep ban co quyen truy nhap vao mot so thu muc tren o cung cua ban. Neu ban khong go bo nhung han che nay truoc – nen go bo khi he dieu hanh cua ban con dang hoat dong binh thuong – thi se kho co the thuc hien viec sao chep hay bat ky tac vu nao voi nhung thu muc nay.
De go bo nhung han che nay ban hay thuc hien tac vu sau khi he dieu hanh cua ban con hoat dong binh thuong. Ban vao trinh quan ly Local Security Settings bang cach vao Run va nhap lenh “secpol.msc” hoac vao Start | Setting | Control Panel | Administrator Tools | Local Security Settings, sau do chuyen den muc Security Settings | Local Policies | Security Options, nhap dup chuot len muc Recovery Console: Allow floppy copy and access to all drives and all folders item roi chon Enabled la xong.
Lan khoi dong ke tiep neu Windows khong kho dong thi ban hay khoi dong WRC roi nhap vao dong lenh “set AllowAllPaths = true” roi an Enter.
Tang toc o cung va giam nguy co hong hoc
Khi ma o cung cua ngay cang day len, he dieu hanh se “nhet” nhung tep tin du lieu moi len o cung vao bat ky cho nao con khoang trong. Doi khi khi co nhung tep tin se bi chia ra thanh rat nhieu nhung phan nho khac nhau de cho phu hop voi dung luong khoang trong con lai tren o dia. Neu co qua nhieu tep tin bi chia nho - hay con goi la phan manh – thi khong nhung o cung cua ban ma ca he dieu hanh cua ban deu se bi cham di rat nhieu khong nhung the ma con tang nguy co bi mat du lieu.
Giai phap o day la ban co the su dung cong cu don phan manh cua he dieu hanh Disk Defragmenter bang cach vao Start | All Programs | Accessories | System Tools roi chon o dia ban muon “don dep” nhap Ok roi ngoi cho.
Tuy nhien, co mot so tep tin ma ban khong the di chuyen duoc trong qua trinh thuc hien don dep phan manh o cung. Nhung tep tin nay van bi phan manh ngay ca sau khi ban da chay Disk Defragmenter. Hau het cac tep tin du lieu nay la Master File Table (MFT) hoac SWAP (RAM ao).
Cach duy nhat la don dep cac tep tin SWAP la phai xoa nhung tep tin nay truoc khi su dung cong cu Disk Defragmenter – tuy nhien ban hay can than chac chan rang he thong cua ban co it nhat 256MB RAM thi moi co the bo tep tin SWAP di duoc.
De bo tep tin SWAP ban hay vao Control Panel | System | Advanced tab | Performance Settings | Advanced tab | Change. Tai muc Virtual Memory ban chon “No paging file” nhap vao Set roi OK la xong. Gio ban hay thuc hien cong viec don dep phan manh o cung. Sau khi da don dep xong ban hay vao lai muc Virtual Memory thiet lap thong so cho RAM ao cua ban. Tang RAM ao co the giup he thong cua ban tang toc. Neu con du o cung thi ban hay dat Initial size la 500Mb va Maximum size la 2048MB thi khong nhung o cung ma ca nhung tep tin MP3 se nghe hay hon rat nhieu.
Con doi voi nhung tep tin MFT - nhung tep tin he thong chi co mat tren cac o cung dinh dang NTFS – thi khong the di chuyen duoc. Khi ma o cung cua ban luu cang nhieu du lieu thi cac tep tin MFT cung tang dung luong va bi phan manh. Tuy nhien, noi nhu the khong co nghia la ban khong the di chuyen duoc chung, mot thu thuat sua Registry se giup ban giai quyet duoc van deu nay. Ban vao Run va go lenh regedit de mo trinh bien tap Registry. Sau khi trinh bien tap Registry khoi dong ban hay tim den khoa HKEY_ LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Filesystem roi nhap dup len khoa NtfsMftZoneReservation ben phia tay phai va nhap gia tri trong khoa tu 2 den 4 vao do – gia tri mac dinh la 1 tuong duong voi 12,5% dung luong o cung danh cho tep tin MFT, gia tri 2-3 la la tu 25-37,5% va 4 la 50%. Dong trinh bien tap Registry roi kho dong lai he thong cua ban.
Tim kiem su don gian
O cung cua ban se thuc su chay nhanh va on dinh hon rat nhieu neu con nhieu khoang trong. Ban da back-up lai du lieu, ma hoa va toi uu hoa du lieu cua minh nhung van con co nhieu viec phai lam.
Viec thu nhat la don dep moi chuong trinh ung dung khong can thiet, don dep nhung phan mem gian diep nguy hiem, virus may tinh…
Tiep theo la viec don dep nhung tep tin du lieu khong can thiet tren cac o cung. Ban hay vao Start | All Programs | Accessories | System Tools | Disk Clean-up de bo het nhung tep tin thua, tep tin tam thoi,…
Qua bai viet nay chung toi chi xin de cap den o day nhung khia canh co ban nhat giup ban co the tang toc phan nao he thong va bao ve du lieu cung nhu o cung cua ban. Article source http://w4rum.com/279.t
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